Potyviridae

VIRION

Non-enveloped, flexuous, filamentous, of one (650-900 nm) or two (500-600 and 200-300 nm) lengths x 12-15 nm in diameter. Symmetry helical. Presence of characteristic inclusion bodies within infected plant cells.

GENOME

Monopartite or bipartite, linear, ssRNA(+) genome of 8,5-12 kb in size. 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 genomic RNA (or genome segments) is translated into polyprotein(s) subsequently processed by virus-encoded proteases into functional products. P3N-PIPO is expressed by a polymerase slippage mechanism from the P3 ORF and probably acts as a movement protein.


Cleavage sites in the family Potyviridae

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.
  7. Viral movement protein P3N-PIPO probably mediates virion cell-to-cell transfer.

Host-virus interaction

Suppression of RNA silencing

P1 proteins of TriMV and Wheat streak mosaic virus function as suppressors of RNA silencing .
Sweet potato mild mottle ipomovirus P1 protein acts as a suppressor of RNA silencing .
Potyviruses HC-PRO functions as a suppressor of RNA silencing .

Matching UniProtKB/Swiss-Prot entries

64 entries grouped by protein (browse by keywords)

All proteins are shown (view only 62 complete proteome entries)

24 entries

P3N-PIPO polyprotein

Select_allDeselect_all
MVP_PVYN
Potato virus Y (strain N) (PVY) reference strain
MVP_BCMNN
Bean common mosaic necrosis virus (strain NL-3) (BCMNV) (Bean common mosaic virus serotype A (strain NL-3))
MVP_BTMV
Beet mosaic virus (BtMV)
MVP_BYMV
Bean yellow mosaic virus
MVP_LMV0
Lettuce mosaic virus (strain 0 / isolate French) (LMV)
MVP_LMVE
Lettuce mosaic virus (strain E) (LMV)
MVP_PEMVC
Pepper mottle virus (isolate California) (PeMV) (PepMoV C)
MVP_PEMVM
Peanut mottle virus (strain M)
MVP_PPVD
Plum pox potyvirus (strain D) (PPV)
MVP_PPVNA
Plum pox potyvirus (isolate NAT) (PPV)
MVP_PPVSK
Plum pox potyvirus (strain SK 68) (PPV)
MVP_PRSVH
Papaya ringspot virus (strain P / mutant HA)
MVP_PSBMV
Pea seed-borne mosaic virus (strain DPD1)
MVP_PVMA
Potato virus A (PVA)
MVP_PVYHU
Potato virus Y (strain Hungarian) (PVY)
MVP_SBMVG
Soybean mosaic virus (strain G2) (SMV)
MVP_SBMVN
Soybean mosaic virus (strain N) (SMV)
MVP_TEV
Tobacco etch virus (TEV)
MVP_TUMVJ
Turnip mosaic virus (strain Japanese) (TuMV)
MVP_TUMVQ
Turnip mosaic virus (strain Quebec) (TuMV)
MVP_TVMV
Tobacco vein mottling virus (TVMV)
MVP_ZYMVC
Zucchini yellow mosaic virus (strain California) (ZYMV)
MVP_ZYMVR
Zucchini yellow mosaic virus (strain Reunion Island) (ZYMV)
MVP_ZYMVS
Zucchini yellow mosaic virus (strain Singapore) (ZYMV)

4 entries

Genome polyprotein 1

Select_allDeselect_all
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

Select_allDeselect_all
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)

30 entries

Genome polyprotein

Select_allDeselect_all
POLG_BSTV1
Brome streak virus (strain 11-Cal) (BStV) (Brome streak mosaic rymovirus) reference strain
POLG_BVY3
Blackberry virus Y (isolate Blackberry plant/USA:Arkansas/C3ARK/2005) (BVY) reference strain
POLG_PVYN
Potato virus Y (strain N) (PVY) reference strain
POLG_RGMVD
Ryegrass mosaic virus (isolate Denmark/Danish) (RGMV) reference strain
POLG_SPMMV
Sweet potato mild mottle virus (isolate Salazar) (SPMMV) reference strain
POLG_BCMNN
Bean common mosaic necrosis virus (strain NL-3) (BCMNV) (Bean common mosaic virus serotype A (strain NL-3))
POLG_BTMV
Beet mosaic virus (BtMV)
POLG_BYMV
Bean yellow mosaic virus
POLG_LMV0
Lettuce mosaic virus (strain 0 / isolate French) (LMV)
POLG_LMVE
Lettuce mosaic virus (strain E) (LMV)
POLG_PEMVC
Pepper mottle virus (isolate California) (PeMV) (PepMoV C)
POLG_PEMVM
Peanut mottle virus (strain M)
POLG_PPVD
Plum pox potyvirus (strain D) (PPV)
POLG_PPVNA
Plum pox potyvirus (isolate NAT) (PPV)
POLG_PPVRA
Plum pox potyvirus (strain Rankovic) (PPV)
POLG_PPVSK
Plum pox potyvirus (strain SK 68) (PPV)
POLG_PRSVH
Papaya ringspot virus (strain P / mutant HA)
POLG_PSBMV
Pea seed-borne mosaic virus (strain DPD1)
POLG_PVMA
Potato virus A (PVA)
POLG_PVYHU
Potato virus Y (strain Hungarian) (PVY)
POLG_SBMVG
Soybean mosaic virus (strain G2) (SMV)
POLG_SBMVN
Soybean mosaic virus (strain N) (SMV)
POLG_TEV
Tobacco etch virus (TEV)
POLG_TRMVU
Triticum mosaic virus (isolate Triticum aestivum/United States/U06-123/2006) (TriMV)
POLG_TUMVJ
Turnip mosaic virus (strain Japanese) (TuMV)
POLG_TUMVQ
Turnip mosaic virus (strain Quebec) (TuMV)
POLG_TVMV
Tobacco vein mottling virus (TVMV)
POLG_ZYMVC
Zucchini yellow mosaic virus (strain California) (ZYMV)
POLG_ZYMVR
Zucchini yellow mosaic virus (strain Reunion Island) (ZYMV)
POLG_ZYMVS
Zucchini yellow mosaic virus (strain Singapore) (ZYMV)