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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 -1 ribosomal frameshifting 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 strain (browse by keywords)

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

2 entries

Barley yellow mosaic virus (isolate China/Yancheng/1998) (BaYMV) reference strain

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POL1_BAYMYGenome polyprotein 1
POL2_BAYMYGenome polyprotein 2

2 entries

Potato virus Y (strain N) (PVY) reference strain

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MVP_PVYNP3N-PIPO polyprotein
POLG_PVYNGenome polyprotein

1 entry

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


POLG_BVY3Genome polyprotein

1 entry

Brome streak virus (strain 11-Cal) (BStV) (Brome streak mosaic rymovirus) reference strain


POLG_BSTV1Genome polyprotein

1 entry

Ryegrass mosaic virus (isolate Denmark/Danish) (RGMV) reference strain


POLG_RGMVDGenome polyprotein

1 entry

Sweet potato mild mottle virus (isolate Salazar) (SPMMV) reference strain


POLG_SPMMVGenome polyprotein

2 entries

Barley mild mosaic virus (strain Na1) (BaMMV)

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POL1_BAMMNGenome polyprotein 1
POL2_BAMMNGenome polyprotein 2

2 entries

Barley yellow mosaic virus (isolate Germany) (BaYMV)

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POL1_BAYMGGenome polyprotein 1
POL2_BAYMGGenome polyprotein 2

2 entries

Barley yellow mosaic virus (strain Japanese II-1) (BaYMV)

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POL1_BAYMJGenome polyprotein 1
POL2_BAYMJGenome polyprotein 2

2 entries

Bean common mosaic necrosis virus (strain NL-3) (BCMNV) (Bean common mosaic virus serotype A (strain NL-3))

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MVP_BCMNNP3N-PIPO polyprotein
POLG_BCMNNGenome polyprotein

2 entries

Bean yellow mosaic virus

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MVP_BYMVP3N-PIPO polyprotein
POLG_BYMVGenome polyprotein

2 entries

Beet mosaic virus (BtMV)

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MVP_BTMVP3N-PIPO polyprotein
POLG_BTMVGenome polyprotein

2 entries

Lettuce mosaic virus (strain 0 / isolate French) (LMV)

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MVP_LMV0P3N-PIPO polyprotein
POLG_LMV0Genome polyprotein

2 entries

Lettuce mosaic virus (strain E) (LMV)

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MVP_LMVEP3N-PIPO polyprotein
POLG_LMVEGenome polyprotein

2 entries

Papaya ringspot virus (strain P / mutant HA)

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MVP_PRSVHP3N-PIPO polyprotein
POLG_PRSVHGenome polyprotein

2 entries

Pea seed-borne mosaic virus (strain DPD1)

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MVP_PSBMVP3N-PIPO polyprotein
POLG_PSBMVGenome polyprotein

2 entries

Peanut mottle virus (strain M)

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MVP_PEMVMP3N-PIPO polyprotein
POLG_PEMVMGenome polyprotein

2 entries

Pepper mottle virus (isolate California) (PeMV) (PepMoV C)

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MVP_PEMVCP3N-PIPO polyprotein
POLG_PEMVCGenome polyprotein

2 entries

Plum pox potyvirus (isolate NAT) (PPV)

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MVP_PPVNAP3N-PIPO polyprotein
POLG_PPVNAGenome polyprotein

2 entries

Plum pox potyvirus (strain D) (PPV)

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MVP_PPVDP3N-PIPO polyprotein
POLG_PPVDGenome polyprotein

2 entries

Plum pox potyvirus (strain SK 68) (PPV)

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MVP_PPVSKP3N-PIPO polyprotein
POLG_PPVSKGenome polyprotein

2 entries

Potato virus A (PVA)

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MVP_PVMAP3N-PIPO polyprotein
POLG_PVMAGenome polyprotein

2 entries

Potato virus Y (strain Hungarian) (PVY)

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MVP_PVYHUP3N-PIPO polyprotein
POLG_PVYHUGenome polyprotein

2 entries

Soybean mosaic virus (strain G2) (SMV)

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MVP_SBMVGP3N-PIPO polyprotein
POLG_SBMVGGenome polyprotein

2 entries

Soybean mosaic virus (strain N) (SMV)

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MVP_SBMVNP3N-PIPO polyprotein
POLG_SBMVNGenome polyprotein

2 entries

Tobacco etch virus (TEV)

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MVP_TEVP3N-PIPO polyprotein
POLG_TEVGenome polyprotein

2 entries

Tobacco vein mottling virus (TVMV)

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MVP_TVMVP3N-PIPO polyprotein
POLG_TVMVGenome polyprotein

2 entries

Turnip mosaic virus (strain Japanese) (TuMV)

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MVP_TUMVJP3N-PIPO polyprotein
POLG_TUMVJGenome polyprotein

2 entries

Turnip mosaic virus (strain Quebec) (TuMV)

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MVP_TUMVQP3N-PIPO polyprotein
POLG_TUMVQGenome polyprotein

2 entries

Zucchini yellow mosaic virus (strain California) (ZYMV)

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MVP_ZYMVCP3N-PIPO polyprotein
POLG_ZYMVCGenome polyprotein

2 entries

Zucchini yellow mosaic virus (strain Reunion Island) (ZYMV)

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MVP_ZYMVRP3N-PIPO polyprotein
POLG_ZYMVRGenome polyprotein

2 entries

Zucchini yellow mosaic virus (strain Singapore) (ZYMV)

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MVP_ZYMVSP3N-PIPO polyprotein
POLG_ZYMVSGenome polyprotein

1 entry

Barley mild mosaic virus (strain ASL) (BaMMV)


POL2_BAMMAGenome polyprotein 2

1 entry

Barley mild mosaic virus (strain UK-F) (BaMMV)


POL2_BAMMUGenome polyprotein 2

1 entry

Plum pox potyvirus (strain Rankovic) (PPV)


POLG_PPVRAGenome polyprotein

1 entry

Triticum mosaic virus (isolate Triticum aestivum/United States/U06-123/2006) (TriMV)


POLG_TRMVUGenome polyprotein