Bymovirus

VIRION

Non-enveloped, flexuous, filamentous, of two lengths (500-600 and 200-300 nm) x 12-15 nm in diameter. Symmetry helical. Presence of characteristic inclusion bodies within infected plant cells.

GENOME

Bipartite, linear, ssRNA(+) genome, composed of RNA1=7.6-7.8 kb and RNA2=3.5-3.8 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 segments are translated into polyproteins which are subsequently processed by virus-encoded proteases 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

10 entries grouped by protein (browse by keywords)

All proteins are shown (view only 8 complete proteome entries)

4 entries

Genome polyprotein 1

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POL1_BAYMY
Barley yellow mosaic virus (isolate China/Yancheng/1998) (BaYMV) reference strain
POL1_BAMMN
Barley mild mosaic virus (strain Na1) (BaMMV)
POL1_BAYMG
Barley yellow mosaic virus (isolate Germany) (BaYMV)
POL1_BAYMJ
Barley yellow mosaic virus (strain Japanese II-1) (BaYMV)

6 entries

Genome polyprotein 2

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POL2_BAYMY
Barley yellow mosaic virus (isolate China/Yancheng/1998) (BaYMV) reference strain
POL2_BAMMA
Barley mild mosaic virus (strain ASL) (BaMMV)
POL2_BAMMN
Barley mild mosaic virus (strain Na1) (BaMMV)
POL2_BAMMU
Barley mild mosaic virus (strain UK-F) (BaMMV)
POL2_BAYMG
Barley yellow mosaic virus (isolate Germany) (BaYMV)
POL2_BAYMJ
Barley yellow mosaic virus (strain Japanese II-1) (BaYMV)