Lineage for Species: TRSV (Tobacco ringspot virus) [TaxId: 12282]

1. Root: SCOPe 2.07

2. Class b: All beta proteins [48724] (178 folds)

3. 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

4. Superfamily b.121.4: Positive stranded ssRNA viruses [88633] (10 families)

5. Family b.121.4.2: Comoviridae-like VP [88636] (3 proteins) duplication: mature coat protein consists of three similar domains that can be in a single chain or in two separate chains

6. Protein Nepovirus capsid protein [49629] (1 species) duplication: cnosists of three very similar domains

7. Species TRSV (Tobacco ringspot virus) [TaxId:12282] [49630] (1 PDB entry)