Waikavirus (taxid:12050)

VIRION

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Non-enveloped, 30 nm in diameter, pseudo T=3 icosahedral capsid.

GENOME

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Linear ssRNA(+) genome of about 12 kb. The 5' terminus has a genome-linked protein (VPg). A poly (A) tract is present at the 3'-end of the Waikavirus genus.

GENE EXPRESSION

The virion RNA is infectious and serves as both the genome and viral messenger RNA. The genome single (or major) ORF is translated into a polyprotein which is subsequently processed by virus-encoded proteases into functional products. There may be also be two small ORFs near the 3'-end.

ENZYMES

REPLICATION

CYTOPLASMIC

  1. Virus penetrates into the cell.
  2. Uncoating, and release of the viral genomic RNA into the cytoplasm.
  3. Synthesis and proteolytic cleavage of the viral polyprotein.
  4. Replication occurs in viral factories made of membrane vesicles derived from the ER. A dsRNA genome is synthesized from the genomic ssRNA(+).
  5. The dsRNA genome is transcribed/replicated thereby providing viral mRNAs/new ssRNA(+) genomes.
  6. Assembly of new virus particles.

Matching UniProtKB/Swiss-Prot entries

(all links/actions below point to uniprot.org website)

2 entries grouped by protein

2 entries

Genome polyprotein

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POLG_RTSVA
Rice tungro spherical virus (strain A) (RTSV) (Rice tungro spherical waikavirus) reference strain
POLG_RTSVT
Rice tungro spherical virus (strain Vt6) (RTSV) (Rice tungro spherical waikavirus)