SUPERFAMILY 1.73 HMM library and genome assignments server


Positive stranded ssRNA viruses superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All beta proteins [ 48724] (165)
Fold:   Nucleoplasmin-like/VP (viral coat and capsid proteins) [ 88632] (7)
  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:   Positive stranded ssRNA viruses [ 88633] (9)
Families:   Picornaviridae-like VP (VP1, VP2, VP3 and VP4) [ 88634] (9)
  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)
  Comoviridae-like VP [ 88636] (2)
  duplication: mature coat protein consists of three similar domains that can be in a single chain or in two separate chains
  Caliciviridae-like VP [ 88637]
  Nodaviridae-like VP [ 88638]
  Tetraviridae-like VP [ 101568]
  Bromoviridae-like VP [ 88639]
  Tymoviridae-like VP [ 88641]
  Tombusviridae-like VP [ 88643] (4)
  Birnaviridae-like VP [ 141109]
  dsRNA virus but unlike the other dsRNA viruses has a genomic arrangement and genomic replication strategy similar to +sRNA viruses; includes Pfam 01766; Birnavirus VP2 protein


Superfamily statistics
Genomes (62) UniProt 15.0 PDB chains (SCOP 1.73)
Domains 73 25,261 161
Proteins 73 22,729 155


Functional annotation
General category Other
Detailed category Viral proteins

Function annotation of SCOP domain superfamilies

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Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.


Alignments of sequences to 90 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.


Browse and view proteins in genomes which have different domain combinations including a Positive stranded ssRNA viruses domain.


Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 90 hidden Markov models representing the Positive stranded ssRNA viruses superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.


Jump to [ Top of page · SCOP classification · Functional annotation · Internal database links ]