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HEADER    HYDROLASE                               19-SEP-02   1MS1              
TITLE     MONOCLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN              
TITLE    2 COMPLEX WITH 3-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID             
TITLE    3 (DANA)                                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRANS-SIALIDASE;                                           
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: ENZYMATIC GLOBULAR CORE;                                   
COMPND   5 EC: 3.2.1.18;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: TRYPANOSOMA CRUZI;                              
SOURCE   3 ORGANISM_COMMON: PARASITIC FLAGELLATE PROTOZOAN;                     
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_COMMON: BACTERIA;                                  
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: DH5A-FT;                                   
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PTRCHISA                                  
KEYWDS    TRANSGLYCOSYLATION, BETA-PROPELLER, PROTEIN-CARBOHYDRATE              
KEYWDS   2 INTERACTIONS, SIALIDASE                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.BUSCHIAZZO,M.F.AMAYA,M.L.CREMONA,A.C.FRASCH,P.M.ALZARI              
REVDAT   1   25-MAR-03 1MS1    0                                                
JRNL        AUTH   A.BUSCHIAZZO,M.F.AMAYA,M.L.CREMONA,A.C.FRASCH,               
JRNL        AUTH 2 P.M.ALZARI                                                   
JRNL        TITL   THE CRYSTAL STRUCTURE AND MODE OF ACTION OF                  
JRNL        TITL 2 TRANS-SIALIDASE, A KEY ENZYME IN TRYPANOSOMA CRUZI           
JRNL        TITL 3 PATHOGENESIS                                                 
JRNL        REF    MOL. CELL                     V.  10   757 2002              
JRNL        REFN   ASTM MOCEFL  US ISSN 1097-2765                               
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION. 1.80 ANGSTROMS.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5                                             
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 15.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 124387                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.177                           
REMARK   3   R VALUE            (WORKING SET) : 0.175                           
REMARK   3   FREE R VALUE                     : 0.199                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 6594                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH           : 1.80                         
REMARK   3   BIN RESOLUTION RANGE LOW            : 1.85                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 8869                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2200                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 499                          
REMARK   3   BIN FREE R VALUE                    : 0.2570                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   ALL ATOMS                : 10915                                   
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.85                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.87000                                              
REMARK   3    B22 (A**2) : -0.34000                                             
REMARK   3    B33 (A**2) : -0.52000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.46000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.959                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.945                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A): 10071 ; 0.008 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 13730 ; 1.325 ; 1.943       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  1278 ; 4.403 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1727 ;15.825 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1513 ; 0.095 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  7664 ; 0.004 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  4714 ; 0.217 ; 0.300       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  1498 ; 0.147 ; 0.500       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    55 ; 0.188 ; 0.300       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    37 ; 0.194 ; 0.500       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  6221 ; 0.592 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 10083 ; 1.103 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  3850 ; 1.694 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  3647 ; 2.810 ; 4.500       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : 0                                 
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 0                                          
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1MS1 COMPLIES WITH FORMAT V. 3.0, 1-DEC-2006                         
REMARK   4                                                                      
REMARK   4 THIS IS THE REMEDIATED VERSION OF THIS PDB ENTRY.                    
REMARK   4 REMEDIATED DATA FILE REVISION 3.101 (2007-05-29)                     
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB .                              
REMARK 100 THE RCSB ID CODE IS RCSB017141.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-MAR-2002                        
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.934                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 155765                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.2                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.08600                            
REMARK 200   FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.83                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.42100                            
REMARK 200   FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ID 1MZ5                                          
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.74                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.55                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, TRISHCL, ISOPROPANOL, PH       
REMARK 280  7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291.K               
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,1/2+Y,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       64.89650            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT             
REMARK 300 WHICH CONSISTS OF 2 CHAIN(S). SEE REMARK 350 FOR                     
REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S).                
REMARK 350                                                                      
REMARK 350 GENERATING THE BIOMOLECULE                                           
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A   -13                                                      
REMARK 465     GLY A   -12                                                      
REMARK 465     GLY A   -11                                                      
REMARK 465     SER A   -10                                                      
REMARK 465     HIS A    -9                                                      
REMARK 465     HIS A    -8                                                      
REMARK 465     HIS A    -7                                                      
REMARK 465     HIS A    -6                                                      
REMARK 465     HIS A    -5                                                      
REMARK 465     HIS A    -4                                                      
REMARK 465     GLY A    -3                                                      
REMARK 465     MET A    -2                                                      
REMARK 465     ALA A    -1                                                      
REMARK 465     SER A     0                                                      
REMARK 465     ASP A   400                                                      
REMARK 465     PRO A   401                                                      
REMARK 465     ALA A   402                                                      
REMARK 465     ALA A   403                                                      
REMARK 465     SER A   404                                                      
REMARK 465     SER A   405                                                      
REMARK 465     SER A   406                                                      
REMARK 465     GLU A   407                                                      
REMARK 465     ARG A   408                                                      
REMARK 465     GLY A   409                                                      
REMARK 465     MET A   633                                                      
REMARK 465     ASP A   634                                                      
REMARK 465     MET B   -13                                                      
REMARK 465     GLY B   -12                                                      
REMARK 465     GLY B   -11                                                      
REMARK 465     SER B   -10                                                      
REMARK 465     HIS B    -9                                                      
REMARK 465     HIS B    -8                                                      
REMARK 465     HIS B    -7                                                      
REMARK 465     HIS B    -6                                                      
REMARK 465     HIS B    -5                                                      
REMARK 465     HIS B    -4                                                      
REMARK 465     GLY B    -3                                                      
REMARK 465     MET B    -2                                                      
REMARK 465     ALA B    -1                                                      
REMARK 465     SER B     0                                                      
REMARK 465     ASP B   400                                                      
REMARK 465     PRO B   401                                                      
REMARK 465     ALA B   402                                                      
REMARK 465     ALA B   403                                                      
REMARK 465     SER B   404                                                      
REMARK 465     SER B   405                                                      
REMARK 465     SER B   406                                                      
REMARK 465     GLU B   407                                                      
REMARK 465     ARG B   408                                                      
REMARK 465     GLY B   409                                                      
REMARK 465     MET B   633                                                      
REMARK 465     ASP B   634                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS(M=MODEL NUMBER;            
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU A 576    CG    CD    OE1   OE2                               
REMARK 470     ARG A 577    CG    CD    NE    CZ    NH1   NH2                   
REMARK 470     GLU B 576    CG    CD    OE1   OE2                               
REMARK 470     ARG B 577    CG    CD    NE    CZ    NH1   NH2                   
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI                             
REMARK 500   O    HOH     282     O    HOH     970              1.67            
REMARK 500   O    HOH     672     O    HOH     711              1.97            
REMARK 500   OH   TYR A   342     C1   DAN    2700              2.02            
REMARK 500   OH   TYR B   342     C1   DAN    2701              2.06            
REMARK 500   O    HOH     832     O    HOH     947              2.08            
REMARK 500   ND1  HIS B   391     O    HOH     904              2.11            
REMARK 500   OE2  GLU B   230     O8   DAN    2701              2.13            
REMARK 500   ND2  ASN B   318     OD1  ASN B   329              2.14            
REMARK 500   O    HOH     437     O    HOH     879              2.14            
REMARK 500   OD1  ASP A    96     O9   DAN    2700              2.15            
REMARK 500   O    HOH     501     O    HOH     829              2.16            
REMARK 500   O    HOH     580     O    HOH     859              2.16            
REMARK 500   OH   TYR B   342     O1B  DAN    2701              2.17            
REMARK 500   O    HOH     888     O    HOH    1012              2.18            
REMARK 500   O    HOH     787     O    HOH     916              2.19            
REMARK 500   O    HOH     837     O    HOH    1043              2.19            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH     561     O    HOH     965     1655     2.14            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),F6.3)                  
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    MET A 170   SD    MET A 170   CE     0.056                        
REMARK 500    ILE A 327   CG1   ILE A 327   CD1    0.065                        
REMARK 500    PRO A 450   CB    PRO A 450   CG     0.066                        
REMARK 500    MET A 594   SD    MET A 594   CE     0.061                        
REMARK 500    GLN A 624   CB    GLN A 624   CG    -0.051                        
REMARK 500    ILE B  81   CG1   ILE B  81   CD1    0.049                        
REMARK 500    MET B 170   SD    MET B 170   CE    -0.066                        
REMARK 500    MET B 259   SD    MET B 259   CE    -0.066                        
REMARK 500    MET B 297   SD    MET B 297   CE     0.126                        
REMARK 500    ILE B 327   CG1   ILE B 327   CD1    0.058                        
REMARK 500    MET B 551   SD    MET B 551   CE     0.064                        
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991                                
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    PRO A 193   N   -  CA  -  C   ANGL. DEV. = -8.9 DEGREES           
REMARK 500    SER B 393   N   -  CA  -  C   ANGL. DEV. =-10.7 DEGREES           
REMARK 500    ARG B 544   CA  -  CB  -  CG  ANGL. DEV. =-15.9 DEGREES           
REMARK 500    ARG B 544   CG  -  CD  -  NE  ANGL. DEV. =-14.7 DEGREES           
REMARK 500    ARG B 544   CD  -  NE  -  CZ  ANGL. DEV. =  9.6 DEGREES           
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525 THE FOLLOWING SOLVENT MOLECULES LIE FARTHER THAN EXPECTED            
REMARK 525 FROM THE PROTEIN OR NUCLEIC ACID MOLECULE AND MAY BE                 
REMARK 525 ASSOCIATED WITH A SYMMETRY RELATED MOLECULE (M=MODEL                 
REMARK 525 NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE          
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH  1085        DISTANCE =  5.07 ANGSTROMS                       
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1MR5   RELATED DB: PDB                                   
REMARK 900 ORTHORHOMBIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE               
REMARK 900 RELATED ID: 1MS0   RELATED DB: PDB                                   
REMARK 900 MONOCLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN             
REMARK 900 COMPLEX WITH 3-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID             
REMARK 900 (DANA)AND LACTOSE                                                    
REMARK 900 RELATED ID: 1MS3   RELATED DB: PDB                                   
REMARK 900 MONOCLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE                 
REMARK 900 RELATED ID: 1MS4   RELATED DB: PDB                                   
REMARK 900 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE                  
REMARK 900 RELATED ID: 1MS5   RELATED DB: PDB                                   
REMARK 900 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, SOAKED          
REMARK 900 WITH N-ACETYLNEURAMINYL-A-2,3-THIO-GALACTOSIDE (NA-S-GAL)            
REMARK 900 RELATED ID: 1MS8   RELATED DB: PDB                                   
REMARK 900 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN              
REMARK 900 COMPLEX WITH 3-DEOXY-2,3-DEHYDRO-N-ACETYLNEURAMINIC ACID             
REMARK 900 (DANA)                                                               
REMARK 900 RELATED ID: 1MS9   RELATED DB: PDB                                   
REMARK 900 TRICLINIC FORM OF TRYPANOSOMA CRUZI TRANS-SIALIDASE, IN              
REMARK 900 COMPLEX WITH LACTOSE                                                 
REMARK 900 RELATED ID: 1MZ5   RELATED DB: PDB                                   
REMARK 900 TRYPANOSOMA RANGELI SIALIDASE                                        
REMARK 900 RELATED ID: 1MZ6   RELATED DB: PDB                                   
REMARK 900 TRYPANOSOMA RANGELI SIALIDASE IN COMPLEX WITH INHIBITOR DANA         
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 AUTHOR INDICATES THAT THE SEQUENCE IN THE DATABASE                   
REMARK 999 IS INCORRECT                                                         
DBREF  1MS1 A    1   634  UNP    Q26964   Q26964_TRYCR     2    635             
DBREF  1MS1 B    1   634  UNP    Q26964   Q26964_TRYCR     2    635             
SEQADV 1MS1 MET A  -13  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 GLY A  -12  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 GLY A  -11  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 SER A  -10  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS A   -9  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS A   -8  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS A   -7  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS A   -6  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS A   -5  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS A   -4  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 GLY A   -3  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 MET A   -2  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 ALA A   -1  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 SER A    0  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 PHE A   58  UNP  Q26964    ASN    59 ENGINEERED                     
SEQADV 1MS1 THR A  262  UNP  Q26964    SER   263 SEE REMARK 999                 
SEQADV 1MS1 HIS A  476  UNP  Q26964    ARG   477 SEE REMARK 999                 
SEQADV 1MS1 LEU A  484  UNP  Q26964    VAL   485 SEE REMARK 999                 
SEQADV 1MS1 LYS A  495  UNP  Q26964    SER   496 ENGINEERED                     
SEQADV 1MS1 GLY A  496  UNP  Q26964    VAL   497 ENGINEERED                     
SEQADV 1MS1 LYS A  520  UNP  Q26964    GLU   521 ENGINEERED                     
SEQADV 1MS1 VAL A  558  UNP  Q26964    GLU   559 SEE REMARK 999                 
SEQADV 1MS1 GLY A  593  UNP  Q26964    ASP   594 ENGINEERED                     
SEQADV 1MS1 ASP A  597  UNP  Q26964    ILE   598 ENGINEERED                     
SEQADV 1MS1 ARG A  599  UNP  Q26964    HIS   600 ENGINEERED                     
SEQADV 1MS1 MET B  -13  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 GLY B  -12  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 GLY B  -11  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 SER B  -10  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS B   -9  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS B   -8  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS B   -7  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS B   -6  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS B   -5  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 HIS B   -4  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 GLY B   -3  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 MET B   -2  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 ALA B   -1  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 SER B    0  UNP  Q26964              HIS TAG                        
SEQADV 1MS1 PHE B   58  UNP  Q26964    ASN    59 ENGINEERED                     
SEQADV 1MS1 THR B  262  UNP  Q26964    SER   263 SEE REMARK 999                 
SEQADV 1MS1 HIS B  476  UNP  Q26964    ARG   477 SEE REMARK 999                 
SEQADV 1MS1 LEU B  484  UNP  Q26964    VAL   485 SEE REMARK 999                 
SEQADV 1MS1 LYS B  495  UNP  Q26964    SER   496 ENGINEERED                     
SEQADV 1MS1 GLY B  496  UNP  Q26964    VAL   497 ENGINEERED                     
SEQADV 1MS1 LYS B  520  UNP  Q26964    GLU   521 ENGINEERED                     
SEQADV 1MS1 VAL B  558  UNP  Q26964    GLU   559 SEE REMARK 999                 
SEQADV 1MS1 GLY B  593  UNP  Q26964    ASP   594 ENGINEERED                     
SEQADV 1MS1 ASP B  597  UNP  Q26964    ILE   598 ENGINEERED                     
SEQADV 1MS1 ARG B  599  UNP  Q26964    HIS   600 ENGINEERED                     
SEQRES   1 A  648  MET GLY GLY SER HIS HIS HIS HIS HIS HIS GLY MET ALA          
SEQRES   2 A  648  SER LEU ALA PRO GLY SER SER ARG VAL GLU LEU PHE LYS          
SEQRES   3 A  648  ARG GLN SER SER LYS VAL PRO PHE GLU LYS ASP GLY LYS          
SEQRES   4 A  648  VAL THR GLU ARG VAL VAL HIS SER PHE ARG LEU PRO ALA          
SEQRES   5 A  648  LEU VAL ASN VAL ASP GLY VAL MET VAL ALA ILE ALA ASP          
SEQRES   6 A  648  ALA ARG TYR GLU THR SER PHE ASP ASN SER LEU ILE ASP          
SEQRES   7 A  648  THR VAL ALA LYS TYR SER VAL ASP ASP GLY GLU THR TRP          
SEQRES   8 A  648  GLU THR GLN ILE ALA ILE LYS ASN SER ARG ALA SER SER          
SEQRES   9 A  648  VAL SER ARG VAL VAL ASP PRO THR VAL ILE VAL LYS GLY          
SEQRES  10 A  648  ASN LYS LEU TYR VAL LEU VAL GLY SER TYR ASN SER SER          
SEQRES  11 A  648  ARG SER TYR TRP THR SER HIS GLY ASP ALA ARG ASP TRP          
SEQRES  12 A  648  ASP ILE LEU LEU ALA VAL GLY GLU VAL THR LYS SER THR          
SEQRES  13 A  648  ALA GLY GLY LYS ILE THR ALA SER ILE LYS TRP GLY SER          
SEQRES  14 A  648  PRO VAL SER LEU LYS GLU PHE PHE PRO ALA GLU MET GLU          
SEQRES  15 A  648  GLY MET HIS THR ASN GLN PHE LEU GLY GLY ALA GLY VAL          
SEQRES  16 A  648  ALA ILE VAL ALA SER ASN GLY ASN LEU VAL TYR PRO VAL          
SEQRES  17 A  648  GLN VAL THR ASN LYS LYS LYS GLN VAL PHE SER LYS ILE          
SEQRES  18 A  648  PHE TYR SER GLU ASP GLU GLY LYS THR TRP LYS PHE GLY          
SEQRES  19 A  648  LYS GLY ARG SER ALA PHE GLY CYS SER GLU PRO VAL ALA          
SEQRES  20 A  648  LEU GLU TRP GLU GLY LYS LEU ILE ILE ASN THR ARG VAL          
SEQRES  21 A  648  ASP TYR ARG ARG ARG LEU VAL TYR GLU SER SER ASP MET          
SEQRES  22 A  648  GLY ASN THR TRP LEU GLU ALA VAL GLY THR LEU SER ARG          
SEQRES  23 A  648  VAL TRP GLY PRO SER PRO LYS SER ASN GLN PRO GLY SER          
SEQRES  24 A  648  GLN SER SER PHE THR ALA VAL THR ILE GLU GLY MET ARG          
SEQRES  25 A  648  VAL MET LEU PHE THR HIS PRO LEU ASN PHE LYS GLY ARG          
SEQRES  26 A  648  TRP LEU ARG ASP ARG LEU ASN LEU TRP LEU THR ASP ASN          
SEQRES  27 A  648  GLN ARG ILE TYR ASN VAL GLY GLN VAL SER ILE GLY ASP          
SEQRES  28 A  648  GLU ASN SER ALA TYR SER SER VAL LEU TYR LYS ASP ASP          
SEQRES  29 A  648  LYS LEU TYR CYS LEU HIS GLU ILE ASN SER ASN GLU VAL          
SEQRES  30 A  648  TYR SER LEU VAL PHE ALA ARG LEU VAL GLY GLU LEU ARG          
SEQRES  31 A  648  ILE ILE LYS SER VAL LEU GLN SER TRP LYS ASN TRP ASP          
SEQRES  32 A  648  SER HIS LEU SER SER ILE CYS THR PRO ALA ASP PRO ALA          
SEQRES  33 A  648  ALA SER SER SER GLU ARG GLY CYS GLY PRO ALA VAL THR          
SEQRES  34 A  648  THR VAL GLY LEU VAL GLY PHE LEU SER HIS SER ALA THR          
SEQRES  35 A  648  LYS THR GLU TRP GLU ASP ALA TYR ARG CYS VAL ASN ALA          
SEQRES  36 A  648  SER THR ALA ASN ALA GLU ARG VAL PRO ASN GLY LEU LYS          
SEQRES  37 A  648  PHE ALA GLY VAL GLY GLY GLY ALA LEU TRP PRO VAL SER          
SEQRES  38 A  648  GLN GLN GLY GLN ASN GLN ARG TYR HIS PHE ALA ASN HIS          
SEQRES  39 A  648  ALA PHE THR LEU VAL ALA SER VAL THR ILE HIS GLU VAL          
SEQRES  40 A  648  PRO LYS GLY ALA SER PRO LEU LEU GLY ALA SER LEU ASP          
SEQRES  41 A  648  SER SER GLY GLY LYS LYS LEU LEU GLY LEU SER TYR ASP          
SEQRES  42 A  648  LYS ARG HIS GLN TRP GLN PRO ILE TYR GLY SER THR PRO          
SEQRES  43 A  648  VAL THR PRO THR GLY SER TRP GLU MET GLY LYS ARG TYR          
SEQRES  44 A  648  HIS VAL VAL LEU THR MET ALA ASN LYS ILE GLY SER VAL          
SEQRES  45 A  648  TYR ILE ASP GLY GLU PRO LEU GLU GLY SER GLY GLN THR          
SEQRES  46 A  648  VAL VAL PRO ASP GLU ARG THR PRO ASP ILE SER HIS PHE          
SEQRES  47 A  648  TYR VAL GLY GLY TYR LYS ARG SER GLY MET PRO THR ASP          
SEQRES  48 A  648  SER ARG VAL THR VAL ASN ASN VAL LEU LEU TYR ASN ARG          
SEQRES  49 A  648  GLN LEU ASN ALA GLU GLU ILE ARG THR LEU PHE LEU SER          
SEQRES  50 A  648  GLN ASP LEU ILE GLY THR GLU ALA HIS MET ASP                  
SEQRES   1 B  648  MET GLY GLY SER HIS HIS HIS HIS HIS HIS GLY MET ALA          
SEQRES   2 B  648  SER LEU ALA PRO GLY SER SER ARG VAL GLU LEU PHE LYS          
SEQRES   3 B  648  ARG GLN SER SER LYS VAL PRO PHE GLU LYS ASP GLY LYS          
SEQRES   4 B  648  VAL THR GLU ARG VAL VAL HIS SER PHE ARG LEU PRO ALA          
SEQRES   5 B  648  LEU VAL ASN VAL ASP GLY VAL MET VAL ALA ILE ALA ASP          
SEQRES   6 B  648  ALA ARG TYR GLU THR SER PHE ASP ASN SER LEU ILE ASP          
SEQRES   7 B  648  THR VAL ALA LYS TYR SER VAL ASP ASP GLY GLU THR TRP          
SEQRES   8 B  648  GLU THR GLN ILE ALA ILE LYS ASN SER ARG ALA SER SER          
SEQRES   9 B  648  VAL SER ARG VAL VAL ASP PRO THR VAL ILE VAL LYS GLY          
SEQRES  10 B  648  ASN LYS LEU TYR VAL LEU VAL GLY SER TYR ASN SER SER          
SEQRES  11 B  648  ARG SER TYR TRP THR SER HIS GLY ASP ALA ARG ASP TRP          
SEQRES  12 B  648  ASP ILE LEU LEU ALA VAL GLY GLU VAL THR LYS SER THR          
SEQRES  13 B  648  ALA GLY GLY LYS ILE THR ALA SER ILE LYS TRP GLY SER          
SEQRES  14 B  648  PRO VAL SER LEU LYS GLU PHE PHE PRO ALA GLU MET GLU          
SEQRES  15 B  648  GLY MET HIS THR ASN GLN PHE LEU GLY GLY ALA GLY VAL          
SEQRES  16 B  648  ALA ILE VAL ALA SER ASN GLY ASN LEU VAL TYR PRO VAL          
SEQRES  17 B  648  GLN VAL THR ASN LYS LYS LYS GLN VAL PHE SER LYS ILE          
SEQRES  18 B  648  PHE TYR SER GLU ASP GLU GLY LYS THR TRP LYS PHE GLY          
SEQRES  19 B  648  LYS GLY ARG SER ALA PHE GLY CYS SER GLU PRO VAL ALA          
SEQRES  20 B  648  LEU GLU TRP GLU GLY LYS LEU ILE ILE ASN THR ARG VAL          
SEQRES  21 B  648  ASP TYR ARG ARG ARG LEU VAL TYR GLU SER SER ASP MET          
SEQRES  22 B  648  GLY ASN THR TRP LEU GLU ALA VAL GLY THR LEU SER ARG          
SEQRES  23 B  648  VAL TRP GLY PRO SER PRO LYS SER ASN GLN PRO GLY SER          
SEQRES  24 B  648  GLN SER SER PHE THR ALA VAL THR ILE GLU GLY MET ARG          
SEQRES  25 B  648  VAL MET LEU PHE THR HIS PRO LEU ASN PHE LYS GLY ARG          
SEQRES  26 B  648  TRP LEU ARG ASP ARG LEU ASN LEU TRP LEU THR ASP ASN          
SEQRES  27 B  648  GLN ARG ILE TYR ASN VAL GLY GLN VAL SER ILE GLY ASP          
SEQRES  28 B  648  GLU ASN SER ALA TYR SER SER VAL LEU TYR LYS ASP ASP          
SEQRES  29 B  648  LYS LEU TYR CYS LEU HIS GLU ILE ASN SER ASN GLU VAL          
SEQRES  30 B  648  TYR SER LEU VAL PHE ALA ARG LEU VAL GLY GLU LEU ARG          
SEQRES  31 B  648  ILE ILE LYS SER VAL LEU GLN SER TRP LYS ASN TRP ASP          
SEQRES  32 B  648  SER HIS LEU SER SER ILE CYS THR PRO ALA ASP PRO ALA          
SEQRES  33 B  648  ALA SER SER SER GLU ARG GLY CYS GLY PRO ALA VAL THR          
SEQRES  34 B  648  THR VAL GLY LEU VAL GLY PHE LEU SER HIS SER ALA THR          
SEQRES  35 B  648  LYS THR GLU TRP GLU ASP ALA TYR ARG CYS VAL ASN ALA          
SEQRES  36 B  648  SER THR ALA ASN ALA GLU ARG VAL PRO ASN GLY LEU LYS          
SEQRES  37 B  648  PHE ALA GLY VAL GLY GLY GLY ALA LEU TRP PRO VAL SER          
SEQRES  38 B  648  GLN GLN GLY GLN ASN GLN ARG TYR HIS PHE ALA ASN HIS          
SEQRES  39 B  648  ALA PHE THR LEU VAL ALA SER VAL THR ILE HIS GLU VAL          
SEQRES  40 B  648  PRO LYS GLY ALA SER PRO LEU LEU GLY ALA SER LEU ASP          
SEQRES  41 B  648  SER SER GLY GLY LYS LYS LEU LEU GLY LEU SER TYR ASP          
SEQRES  42 B  648  LYS ARG HIS GLN TRP GLN PRO ILE TYR GLY SER THR PRO          
SEQRES  43 B  648  VAL THR PRO THR GLY SER TRP GLU MET GLY LYS ARG TYR          
SEQRES  44 B  648  HIS VAL VAL LEU THR MET ALA ASN LYS ILE GLY SER VAL          
SEQRES  45 B  648  TYR ILE ASP GLY GLU PRO LEU GLU GLY SER GLY GLN THR          
SEQRES  46 B  648  VAL VAL PRO ASP GLU ARG THR PRO ASP ILE SER HIS PHE          
SEQRES  47 B  648  TYR VAL GLY GLY TYR LYS ARG SER GLY MET PRO THR ASP          
SEQRES  48 B  648  SER ARG VAL THR VAL ASN ASN VAL LEU LEU TYR ASN ARG          
SEQRES  49 B  648  GLN LEU ASN ALA GLU GLU ILE ARG THR LEU PHE LEU SER          
SEQRES  50 B  648  GLN ASP LEU ILE GLY THR GLU ALA HIS MET ASP                  
HET    DAN   2700      26                                                       
HET    DAN   2701      26                                                       
HET    GOL   2800       6                                                       
HET    GOL   2801       6                                                       
HET    GOL   2802       6                                                       
HETNAM     DAN 2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID                     
HETNAM     GOL GLYCEROL                                                         
FORMUL   3  DAN    2(C11 H17 N O8)                                              
FORMUL   5  GOL    3(C3 H8 O3)                                                  
FORMUL   8  HOH   *1096(H2 O)                                                   
HELIX    1   1 TYR A  119  HIS A  123  5                                   5    
HELIX    2   2 LYS A  160  PHE A  163  5                                   4    
HELIX    3   3 LEU A  371  ILE A  395  1                                  25    
HELIX    4   4 SER A  467  GLY A  470  5                                   4    
HELIX    5   5 TYR A  475  ASN A  479  5                                   5    
HELIX    6   6 ASN A  613  SER A  623  1                                  11    
HELIX    7   7 TYR B  119  HIS B  123  5                                   5    
HELIX    8   8 LYS B  160  PHE B  163  5                                   4    
HELIX    9   9 LEU B  371  SER B  393  1                                  23    
HELIX   10  10 SER B  467  GLY B  470  5                                   4    
HELIX   11  11 TYR B  475  HIS B  480  5                                   6    
HELIX   12  12 ASN B  613  SER B  623  1                                  11    
SHEET    1   A 4 SER A   6  PHE A  11  0                                        
SHEET    2   A 4 VAL A 363  ARG A 370 -1  N  LEU A 366   O  PHE A  11           
SHEET    3   A 4 LYS A 351  SER A 360 -1  O  CYS A 354   N  ALA A 369           
SHEET    4   A 4 SER A 343  LYS A 348 -1  O  SER A 344   N  LEU A 355           
SHEET    1   B 2 LYS A  17  LYS A  22  0                                        
SHEET    2   B 2 LYS A  25  VAL A  30 -1  O  LYS A  25   N  LYS A  22           
SHEET    1   C 4 SER A  33  VAL A  42  0                                        
SHEET    2   C 4 VAL A  45  ARG A  53 -1  O  VAL A  45   N  VAL A  42           
SHEET    3   C 4 ILE A  63  SER A  70 -1  O  ASP A  64   N  ALA A  52           
SHEET    4   C 4 GLU A  78  ILE A  83 -1  N  GLU A  78   O  TYR A  69           
SHEET    1   D 7 THR A 148  TRP A 153  0                                        
SHEET    2   D 7 TRP A 129  SER A 141 -1  N  GLU A 137   O  LYS A 152           
SHEET    3   D 7 VAL A 157  SER A 158 -1  O  VAL A 157   N  LEU A 133           
SHEET    4   D 7 TRP A 129  SER A 141 -1  N  LEU A 133   O  VAL A 157           
SHEET    5   D 7 LYS A 105  TYR A 113 -1  O  LEU A 106   N  GLY A 136           
SHEET    6   D 7 ARG A  93  LYS A 102 -1  O  ARG A  93   N  TYR A 113           
SHEET    7   D 7 GLY A 180  VAL A 181  1  O  GLY A 180   N  VAL A  99           
SHEET    1   E 7 GLU A 166  MET A 167  0                                        
SHEET    2   E 7 MET A 170  GLY A 177 -1  N  MET A 170   O  MET A 167           
SHEET    3   E 7 LEU A 190  ASN A 198 -1  N  GLN A 195   O  LEU A 176           
SHEET    4   E 7 ILE A 183  VAL A 184 -1  O  ILE A 183   N  VAL A 191           
SHEET    5   E 7 LEU A 190  ASN A 198 -1  N  VAL A 191   O  ILE A 183           
SHEET    6   E 7 VAL A 203  SER A 210 -1  O  PHE A 204   N  VAL A 196           
SHEET    7   E 7 LYS A 218  PHE A 219 -1  O  LYS A 218   N  TYR A 209           
SHEET    1   F 4 CYS A 228  TRP A 236  0                                        
SHEET    2   F 4 LYS A 239  VAL A 246 -1  O  LYS A 239   N  TRP A 236           
SHEET    3   F 4 VAL A 253  SER A 256 -1  O  TYR A 254   N  ILE A 242           
SHEET    4   F 4 LEU A 264  GLU A 265 -1  O  LEU A 264   N  GLU A 255           
SHEET    1   G 4 PHE A 289  ILE A 294  0                                        
SHEET    2   G 4 MET A 297  PRO A 305 -1  O  MET A 297   N  ILE A 294           
SHEET    3   G 4 LEU A 317  THR A 322 -1  N  ASN A 318   O  HIS A 304           
SHEET    4   G 4 ILE A 327  GLN A 332 -1  N  TYR A 328   O  LEU A 321           
SHEET    1   H19 TRP A 524  TYR A 528  0                                        
SHEET    2   H19 LYS A 512  ASP A 519 -1  O  GLY A 515   N  ILE A 527           
SHEET    3   H19 ALA A 497  SER A 504 -1  N  SER A 498   O  TYR A 518           
SHEET    4   H19 HIS A 583  VAL A 586 -1  O  HIS A 583   N  SER A 504           
SHEET    5   H19 GLY A 461  PRO A 465 -1  N  ALA A 462   O  VAL A 586           
SHEET    6   H19 ALA A 441  ALA A 444 -1  O  SER A 442   N  LEU A 463           
SHEET    7   H19 GLU A 431  ASP A 434 -1  N  TRP A 432   O  ALA A 441           
SHEET    8   H19 LEU A 419  ALA A 427 -1  N  SER A 424   O  GLU A 433           
SHEET    9   H19 VAL A 600  TYR A 608 -1  O  VAL A 605   N  LEU A 423           
SHEET   10   H19 GLY A 452  PHE A 455 -1  O  LEU A 453   N  VAL A 602           
SHEET   11   H19 ALA A 446  VAL A 449 -1  O  GLU A 447   N  LYS A 454           
SHEET   12   H19 GLY A 452  PHE A 455 -1  N  GLY A 452   O  VAL A 449           
SHEET   13   H19 VAL A 600  TYR A 608 -1  O  VAL A 600   N  PHE A 455           
SHEET   14   H19 ALA A 481  ILE A 490 -1  O  THR A 483   N  TYR A 608           
SHEET   15   H19 ARG A 544  ALA A 552 -1  N  TYR A 545   O  VAL A 488           
SHEET   16   H19 ILE A 555  ILE A 560 -1  N  ILE A 555   O  ALA A 552           
SHEET   17   H19 GLU A 563  PRO A 564 -1  O  GLU A 563   N  ILE A 560           
SHEET   18   H19 ILE A 555  ILE A 560 -1  N  ILE A 560   O  GLU A 563           
SHEET   19   H19 GLN A 570  THR A 571 -1  O  GLN A 570   N  GLY A 556           
SHEET    1   I 4 SER B   6  PHE B  11  0                                        
SHEET    2   I 4 VAL B 363  ARG B 370 -1  O  LEU B 366   N  PHE B  11           
SHEET    3   I 4 LYS B 351  SER B 360 -1  O  CYS B 354   N  ALA B 369           
SHEET    4   I 4 SER B 343  LYS B 348 -1  O  SER B 344   N  LEU B 355           
SHEET    1   J 2 LYS B  17  LYS B  22  0                                        
SHEET    2   J 2 LYS B  25  VAL B  30 -1  O  LYS B  25   N  LYS B  22           
SHEET    1   K 4 SER B  33  VAL B  42  0                                        
SHEET    2   K 4 VAL B  45  ARG B  53 -1  O  VAL B  45   N  VAL B  42           
SHEET    3   K 4 ILE B  63  SER B  70 -1  O  ASP B  64   N  ALA B  52           
SHEET    4   K 4 GLU B  78  ILE B  83 -1  N  GLU B  78   O  TYR B  69           
SHEET    1   L 7 THR B 148  TRP B 153  0                                        
SHEET    2   L 7 TRP B 129  SER B 141 -1  N  GLU B 137   O  LYS B 152           
SHEET    3   L 7 VAL B 157  SER B 158 -1  O  VAL B 157   N  LEU B 133           
SHEET    4   L 7 TRP B 129  SER B 141 -1  N  LEU B 133   O  VAL B 157           
SHEET    5   L 7 LYS B 105  TYR B 113 -1  N  LEU B 106   O  GLY B 136           
SHEET    6   L 7 ARG B  93  LYS B 102 -1  O  ARG B  93   N  TYR B 113           
SHEET    7   L 7 GLY B 180  VAL B 181  1  O  GLY B 180   N  VAL B  99           
SHEET    1   M 7 GLU B 166  MET B 167  0                                        
SHEET    2   M 7 MET B 170  GLY B 177 -1  O  MET B 170   N  MET B 167           
SHEET    3   M 7 LEU B 190  ASN B 198 -1  N  GLN B 195   O  LEU B 176           
SHEET    4   M 7 ILE B 183  VAL B 184 -1  O  ILE B 183   N  VAL B 191           
SHEET    5   M 7 LEU B 190  ASN B 198 -1  N  VAL B 191   O  ILE B 183           
SHEET    6   M 7 VAL B 203  SER B 210 -1  O  PHE B 204   N  VAL B 196           
SHEET    7   M 7 LYS B 218  PHE B 219 -1  N  LYS B 218   O  TYR B 209           
SHEET    1   N 4 CYS B 228  TRP B 236  0                                        
SHEET    2   N 4 LYS B 239  VAL B 246 -1  O  LYS B 239   N  TRP B 236           
SHEET    3   N 4 VAL B 253  SER B 256 -1  O  TYR B 254   N  ILE B 242           
SHEET    4   N 4 LEU B 264  GLU B 265 -1  O  LEU B 264   N  GLU B 255           
SHEET    1   O 4 PHE B 289  ILE B 294  0                                        
SHEET    2   O 4 MET B 297  PRO B 305 -1  O  MET B 297   N  ILE B 294           
SHEET    3   O 4 LEU B 317  THR B 322 -1  N  ASN B 318   O  HIS B 304           
SHEET    4   O 4 ILE B 327  GLN B 332 -1  N  TYR B 328   O  LEU B 321           
SHEET    1   P19 TRP B 524  TYR B 528  0                                        
SHEET    2   P19 LYS B 512  TYR B 518 -1  O  GLY B 515   N  ILE B 527           
SHEET    3   P19 SER B 498  SER B 504 -1  N  SER B 498   O  TYR B 518           
SHEET    4   P19 HIS B 583  VAL B 586 -1  O  HIS B 583   N  SER B 504           
SHEET    5   P19 GLY B 461  PRO B 465 -1  N  ALA B 462   O  VAL B 586           
SHEET    6   P19 ALA B 441  ALA B 444 -1  O  SER B 442   N  LEU B 463           
SHEET    7   P19 GLU B 431  ASP B 434 -1  N  TRP B 432   O  ALA B 441           
SHEET    8   P19 LEU B 419  ALA B 427 -1  N  SER B 424   O  GLU B 433           
SHEET    9   P19 VAL B 600  TYR B 608 -1  O  VAL B 605   N  LEU B 423           
SHEET   10   P19 GLY B 452  PHE B 455 -1  O  LEU B 453   N  VAL B 602           
SHEET   11   P19 ALA B 446  VAL B 449 -1  N  GLU B 447   O  LYS B 454           
SHEET   12   P19 GLY B 452  PHE B 455 -1  O  GLY B 452   N  VAL B 449           
SHEET   13   P19 VAL B 600  TYR B 608 -1  O  VAL B 600   N  PHE B 455           
SHEET   14   P19 PHE B 482  ILE B 490 -1  O  THR B 483   N  TYR B 608           
SHEET   15   P19 ARG B 544  ALA B 552 -1  O  TYR B 545   N  VAL B 488           
SHEET   16   P19 ILE B 555  ILE B 560 -1  N  ILE B 555   O  ALA B 552           
SHEET   17   P19 GLU B 563  PRO B 564 -1  O  GLU B 563   N  ILE B 560           
SHEET   18   P19 ILE B 555  ILE B 560 -1  N  ILE B 560   O  GLU B 563           
SHEET   19   P19 GLN B 570  THR B 571 -1  O  GLN B 570   N  GLY B 556           
SSBOND   1 CYS A  396    CYS A  410                                             
SSBOND   2 CYS B  396    CYS B  410                                             
CRYST1   63.719  129.793   88.039  90.00  90.67  90.00 P 1 21 1      4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.015694  0.000000  0.000184        0.00000                         
SCALE2      0.000000  0.007705  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011359        0.00000