FEATURES

DESCRIPTION

Also known as POL2_CPMVS, POL2. Responsible for viral RNA2 accumulation. May function by recruiting the RNA1-encoded polyprotein that contains the replication protein to RNA2 and enable its replication., Transports the viral genome to neighboring plant cells directly through plasmosdesmata, without any budding (PubMed:9501035). The movement protein allows efficient cell to cell propagation, by bypassing the host cell wall barrier. Acts by forming a tubular structure at the host plasmodesmata, enlarging it enough to allow free passage of virion capsids (PubMed:12556992, PubMed:14579172) (Probable). Binds to GTP and to single-stranded RNA and single-stranded DNA in a non-sequence-specific manner (PubMed:14722313)., Together with the mature small capsid protein, forms an icosahedral capsid (T=3) enclosing the viral positive strand RNA genome, with a diameter of approximately 300 Angstroms (PubMed:28373698, PubMed:10603314, PubMed:26657148, PubMed:27021160). The capsid is formed from 60 copies each of the large and the small capsid protein (PubMed:28373698, PubMed:10603314, PubMed:26657148, PubMed:27021160). The large capsid protein interacts with the viral RNA (PubMed:28373698, PubMed:26657148)., Together with the large capsid protein, forms an icosahedral capsid (T=3) enclosing the viral positive strand RNA genome, with a diameter of approximately 300 Angstroms. The capsid is formed from 60 copies each of the large and the small capsid protein. The mature small capsid protein forms the turrets at the fivefold axes of the viral particle., The cleavable C-terminus of small capsid protein seems to be involved in viral assembly and RNA packaging (PubMed:10049828). After virus assembly, these amino acids are cleaved off during the normal maturation of the virus (PubMed:26657148, PubMed:10049828). Also seems to act as suppressor of post-transcriptional gene silencing (PTGS), a mechanism of plant viral defense that limits the accumulation of viral RNAs (PubMed:15483261, PubMed:15165817)., Acts as a suppressor of RNA-mediated gene silencing, also known as post-transcriptional gene silencing (PTGS), a mechanism of plant viral defense that limits the accumulation of viral RNAs. Interacts with the large capsid protein (PubMed:26657148, PubMed:10603314).

EXTERNAL LINKS

POL2

RNA2 polyprotein

POL2

Molecular Synopsis