Brambyvirus

VIRION

Non-enveloped, flexuous, filamentous, about 800 nm long and 12-15 nm in diameter. Symmetry helical. Presence of characteristic inclusion bodies within infected plant cells.

GENOME

Monopartite, linear, ssRNA(+) genome of about 11 kb. 3’ terminus has a poly (A) tract. 5’ terminus has a genome-linked protein (VPg).

GENE EXPRESSION

The virion RNA is infectious and serves as both the genome and viral messenger RNA. The genome is translated into a polyprotein which is subsequently processed by virus-encoded protease)s) into functional products.

REPLICATION

CYTOPLASMIC

  1. Virus penetrates into the host cell.
  2. Uncoating, and release of the viral genomic RNA into the cytoplasm.
  3. The viral RNA is translated to produce a polyprotein which is processed by viral proteases into the RdRp protein and structural proteins.
  4. Replication takes place in cytoplasmic viral factories. A dsRNA genome is synthesized from the genomic ssRNA(+).
  5. The dsRNA genome is transcribed/replicated thereby providing viral mRNAs/new ssRNA(+) genomes.
  6. Virus assembly in the cytoplasm.

Matching UniProtKB/Swiss-Prot entries

1 entry grouped by strain (browse by keywords)

1 entry

Blackberry virus Y (isolate Blackberry plant/USA:Arkansas/C3ARK/2005) (BVY) reference strain


POLG_BVY3Genome polyprotein