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Summary of major changes in the classification that occurred in SCOP 1.63 (Last modified 2003-06-09).

  • Membrane all-alpha fold [f.2; 56868], that was not a true fold, has been dissolved with all its content having been reclassified from scratch to a number of new and existing folds and superfamilies.

  • E-set domains family [b.1.1.5; 49208, and b.1.1.6; 68902] of the immunoglobulin superfamily have been transformed into a superfamily with its content having been rearranged in several (new) families; one protein from the original family [sp=69166] has been reassigned to a new fold.

  • In Nucleotidyltransferases fold/superfamily [e.9.1; 56699] of the multi-domain class, the members of first three families have been split into domains. Their common catalytic domains have been moved together (to a new fold/SF), whereas other domains have been classified into different folds. The last, fourth family remains in the multi-domain class in the fold of its own.

  • DNA repair protein MutM (Fpg) fold/SF/family [e.14.1; 56736] of the multi-domain class has been split into three domains. Its middle domain has been classified to the same SF as the ribosomal protein S13. This superfamily has been taken out of the RuvA C-terminal domain-like fold [a.5; 46928] and classified to a new fold.

  • Superfamilies Catalytic domain of malonyl-CoA ACP transacylase [c.19.1; 52151] and Cytosolic phospholipase A2 catalytic domain [c.75.1; 53644] have been merged together.

  • Superfamilies Adenine nucleotide alpha hydrolases [c.26.2; 52402] and ETFP adenine nucleotide-binding domain-like [c.29.1; 52431] have been merged together.

  • Superfamilies Muconalactone isomerase [d.58.4; 54909] and Lrp/AsnC-like transcriptional regulator C-terminal domain [d.58.37; 69732] have been merged together.

  • Superfamilies Synatpobrevin N-terminal domain [d.110.4; 64356] and Clathrin coat assembly domain [d.110.6; 75520] have been merged together.

  • SAND domain fold/SF/family [b.99.1; 63763] has been moved (from all-beta) to the alpha+beta class.

  • Trp repressor superfamily [a.107.1; 48295] has been moved from its own fold to the DNA/RNA-binding 3-helical bundle fold [a.4].

  • Family Threonyl-tRNA synthetase (ThrRS), N-terminal 'additional' domain [d.66.11; 55175] has been taken out of the Alpha-L RNA-binding motif superfamily [55174] and put back to the ubiquitin-like fold (as a new SF).

  • C-terminal domain of ProRS superfamily [g.56.1; 64586] has been moved from the Small proteins class (where it has its own fold) to the IF3-like fold [d.68]

    In addition, the classifications below superfamily level have been refined for a number of superfamilies without changing their overall contents. The pending refinement of other superfamily classifications will be carried out gradually through a number of future releases.


    Copyright © 1994-2003 The scop authors / scop@mrc-lmb.cam.ac.uk
    May 2003