Class b: All beta proteins [48724] (174 folds) |
Fold 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 |
Superfamily b.121.4: Positive stranded ssRNA viruses [88633] (10 families) |
b.121.4.1: Picornaviridae-like VP (VP1, VP2, VP3 and VP4) [88634] (10 proteins) 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) |
b.121.4.2: Comoviridae-like VP [88636] (2 proteins) duplication: mature coat protein consists of three similar domains that can be in a single chain or in two separate chains |
b.121.4.3: Caliciviridae-like VP [88637] (1 protein) |
b.121.4.4: Nodaviridae-like VP [88638] (1 protein) |
b.121.4.5: Bromoviridae-like VP [88639] (2 proteins) |
b.121.4.6: Tymoviridae-like VP [88641] (2 proteins) |
b.121.4.7: Tombusviridae-like VP [88643] (5 proteins) |
b.121.4.8: Tetraviridae-like VP [101568] (1 protein) |
b.121.4.9: Birnaviridae-like VP [141109] (2 proteins) dsRNA virus but unlike the other dsRNA viruses has a genomic arrangement and genomic replication strategy similar to +sRNA viruses; includes Pfam PF01766; Birnavirus VP2 protein |
b.121.4.0: automated matches [191569] (1 protein) not a true family |
Timeline for Superfamily b.121.4: Positive stranded ssRNA viruses: