IPR000937
Icosahedral viral capsid protein, S domain
InterPro entry
Short name | Capsid_prot_S-dom_vir |
Overlapping homologous superfamilies |
Description
The capsid proteins of plant icosahedral positive strand RNA viruses form 4 different domains, a positively charged, N-terminal 'R' domain, which interacts with RNA (66 residues); a connecting arm, 'a' (35 residues); a central, surface 'S' domain, which forms the virion shell; and a projecting, C-terminal 'P' domain
[1]. Some of the viruses lack either the R or P domains. The S domain contains from 158 to 166 amino acids and comprises 8 anti-parallel β-strands, which form a twisted sheet or jelly-roll fold. This structure is shared by a number of plant viral capsid proteins, which include: Carmovirus, Dianthovirus, Sobemovirus, Tombusvirus and an unidentified tobacco necrosis virus
[2].
References
1.The three-dimensional distribution of RNA and protein in the interior of tomato bushy stunt virus: a neutron low-resolution single-crystal diffraction study. Timmins PA, Wild D, Witz J. Structure 2, 1191-201, (1994). View articlePMID: 7704529
GO terms
biological process
- None
molecular function
cellular component
Cross References
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