Movement Protein TGB2 (BSMVs2gp3) Barley Stripe Mosaic Virus Recombinant Protein

Function: Participates in the transport of viral RNA to the plasmodesmata. Is probably targeted to plasmodesmata by TGBp3, along with viral RNAs-TGBp1 (RNP complex). Can gate plasmodesmata and increase their size exclusion limit

By similarity.

Subunit structure: Interacts with movement protein TGB3. Ref.2

Subcellular location: Host cell junction › host plasmodesma

Potential. Host endoplasmic reticulum membrane; Multi-pass membrane protein

Potential. Note: localizes to plasmodesmata or plasmodesmata-associated membrane compartments called peripheral membrane bodies (PMBs)

Potential.

Miscellaneous: This protein is translated as a fusion protein by episodic readthrough of a termination codon. Readthrough of the terminator codon TGA occurs between the codons for Gly-131 and Ser-133, thereby producing TGB2' minor translational readthrough protein.The genome of this virus consists of three linear, positive, single-stranded RNAs encapsidated in separate virions designated RNA-alpha, RNA-beta and RNA-gamma. Three proteins (alpha-A, beta-A and gamma-A) are translated directly from these genomic RNAs and the remaining proteins encoded on RNA-beta (beta-B, beta-C and beta-D) and RNA-gamma (gamma-B) are expressed via three subgenomic messenger RNAs.

Sequence similarities: Belongs to the virgaviridae/benyvirus TGB2 movement protein family.