Lineage for Superfamily b.121.4: Positive stranded ssRNA viruses

  1. Root: SCOP 1.65
  2. 287094Class b: All beta proteins [48724] (126 folds)
  3. 304390Fold b.121: Nucleoplasmin-like/VP (viral coat and capsid proteins) [88632] (7 superfamilies)
    sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands
    characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies
  4. 304471Superfamily b.121.4: Positive stranded ssRNA viruses [88633] (7 families) (S)

Families:

  1. 304472b.121.4.1: Picornaviridae-like VP (VP1, VP2, VP3 and VP4) [88634] (9 protein domains)
    the order of the chains N-VP0-VP3-VP1-C is as in the polyprotein; VP0 is cleaved later upon capsid assembly to VP4 and VP2
    there is a different order in the shuffled genome of insect picorna-like proteins (Cricket paralysis virus)
  2. 304722b.121.4.2: Comoviridae-like VP [88636] (2 protein domains)
    duplication: mature coat protein consists of three similar domains that can be in a single chain or in two separate chains
  3. 304737b.121.4.3: Caliciviridae-like VP [88637] (1 protein)
  4. 304743b.121.4.4: Nodaviridae-like VP [88638] (1 protein)
  5. 304757b.121.4.5: Bromoviridae-like VP [88639] (1 protein)
  6. 304775b.121.4.6: Tymoviridae-like VP [88641] (1 protein)
  7. 304792b.121.4.7: Tombusviridae-like VP [88643] (4 protein domains)

More info for Superfamily b.121.4: Positive stranded ssRNA viruses

Timeline for Superfamily b.121.4: Positive stranded ssRNA viruses: