Root: scop

Classes:

1. All alpha proteins [46456] (13)
   1. Globin-like [46457] (1)
   2. DNA/RNA-binding 3-helical bundle [46688] (1)
   3. Four-helical up-and-down bundle [47161] (1)
   4. Ferritin-like [47239] (1)
   5. Transcription factor IIA (TFIIA), N-terminal domain [47395] (1)
   6. Ectatomin, A & B chains [47400] (1)
   7. SinR repressor dimerisation domain-like [47405] (1)
   8. IHF-like DNA-binding proteins [47728] (1)
   9. Left-handed superhelix [47916] (1)
   10. Heme-dependent peroxidases [48112] (1)
   11. RNA polymerase sigma subunit [48328] (1)
   12. alpha-alpha superhelix [48370] (1)
   13. Phospholipase A2, PLA2 [48618] (1)
2. All beta proteins [48724] (15)
   1. Immunoglobulin-like beta-sandwich [48725] (1)
   2. C2 domain-like [49561] (1)
   3. Viral coat and capsid proteins [49610] (1)
   4. Nucleoplasmin/PNGase F-like [49741] (3)
   5. Hyaluronate lyase-like, C-terminal domain [49862] (1)
   6. Supersandwich [49993] (1)
   7. EV matrix protein [50011] (1)
   8. GroES-like [50128] (1)
   9. PDZ domain-like [50155] (1)
   10. OB-fold [50198] (1)
   11. Domain of alpha and beta subunits of F1 ATP synthase-like [50614] (2)
   12. Transcription factor IIA (TFIIA), N-terminal domain [50783] (1)
   13. PK beta-barrel domain-like [50799] (1)
   14. Single-stranded left-handed beta-helix [51160] (1)
   15. Triple-stranded beta-helix [69348] (1)
3. Alpha and beta proteins (a/b) [51349] (7)
   Mainly parallel beta sheets (beta-alpha-beta units)
   1. TIM beta/alpha-barrel [51350] (3)
   2. NAD(P)-binding Rossmann-fold domains [51734] (1)
   3. Flavodoxin-like [52171] (2)
   4. Thiamin diphosphate-binding fold (THDP-binding) [52517] (1)
   5. P-loop containing nucleotide triphosphate hydrolases [52539] (1)
   6. Resolvase-like [53040] (1)
   7. S-adenosyl-L-methionine-dependent methyltransferases [53334] (1)
4. Alpha and beta proteins (a+b) [53931] (9)
   Mainly antiparallel beta sheets (segregated alpha and beta regions)
   1. IL8-like [54116] (1)
   2. MHC antigen-recognition domain [54451] (1)
   3. POZ domain [54694] (1)
   4. Signal recognition particle alu RNA binding heterodimer, SRP9/14 [54761] (1)
   5. Ferredoxin-like [54861] (2)
   6. IF3-like [55199] (1)
   7. Profilin-like [55769] (1)
   8. Protein kinase-like (PK-like) [56111] (1)
   9. C-type lectin-like [56435] (1)
5. Multi-domain proteins (alpha and beta) [56572] (2)
   Folds consisting of two or more domains belonging to different classes
   1. Archaeosine tRNA-guanine transglycosylase, C-terminal additional domains [75603] (1)
   2. Golgi alpha-mannosidase II [69897] (1)
6. Membrane and cell surface proteins and peptides [56835] (0)
   Does not include proteins in the immune system
7. Small proteins [56992] (1)
   Usually dominated by metal ligand, heme, and/or disulfide bridges
   1. Cystine-knot cytokines [57500] (1)
8. Coiled coil proteins [57942] (1)
   Not a true class
   1. Parallel coiled-coil [57943] (2)
9. Low resolution protein structures [58117] (0)
   Not a true class
10. Peptides [58231] (0)
    Peptides and fragments. Not a true class
11. Designed proteins [58788] (0)
    Experimental structures of proteins with essentially non-natural sequences. Not a true class
12. Non-protein [0] (0)
    PDB entries which are theoretical models, nucleic acids, or other non-proteins