Ampelovirus (taxid:217160)



Non-enveloped, flexuous and exceptionally long, filamentous particles about 1400-2200 nm in length and 10-13 nm in diameter. The virion body is assembled by the major capsid protein (CP) and the tail by the minor capsid protein (CPm).



Linear, ssRNA(+) genome of 16.9 to 17.9 kb. 3' terminus has no poly(A) tract and the 5' terminus probably has a methylated nucleotide cap. Encodes 13 proteins.


The virion RNA is infectious and serves as both the genome and viral messenger RNA. ORF1a and ORF1ab protein (containing RdRp) are produced by ribosomal frameshifting. Other ORFs are translated from a set of nested 3' co-terminal subgenomic RNAs.




  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 into a processed ORF1 polyprotein to yield the replication proteins.
  4. Replication occurs in 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. Subgenomic RNA translation gives rise to the other viral proteins.
  7. Assembly of new virus particles.
  8. Viral movement proteins mediate virion cell-to-cell transfer.

Matching UniProtKB/Swiss-Prot entries

(all links/actions below point to website)

13 entries grouped by strain

13 entries

Grapevine leafroll-associated virus 3 (isolate United States/NY1) (GLRaV-3) (Grapevine leafroll-associated closterovirus (isolate 109)) reference strain

R1AB_GLRV3 Replicase polyprotein 1ab [Cleaved into: Leader protease (L-Pro) (EC 3.4.22.-) (Papain-like cysteine ...
R1A_GLRV3 Replicase protein 1a [Cleaved into: Leader protease (L-Pro) (EC 3.4.22.-) (Papain-like cysteine ...
MVP2_GLRV3 Movement protein p5 (5 kDa protein) (Protein P5)
MVP1_GLRV3 Movement protein Hsp70h (Heat shock protein 70 homolog) (Hsp70h)
P55_GLRV3 Protein P55
CAPSD_GLRV3 Capsid protein (CP) (Coat protein)
CPM_GLRV3 Minor capsid protein (CPm)
P6_GLRV3 Uncharacterized 6 kDa protein (p6)
P21_GLRV3 Protein P21 (21 kDa protein)
P20A_GLRV3 Protein P20A (19.6 kDa protein)
P20B_GLRV3 Protein P20B (19.7 kDa protein)
P4_GLRV3 Protein P4 (4 kDa protein)
P7_GLRV3 Protein P7 (7 kDa protein)
These structures were created with the help of Colabfold by Jason Nomburg, Nathan Price and Jennifer Doudna (ModelArchive).

Blackberry vein banding-associated virus taxid:1381464

Protein ModelArchive
Heat shock protein 70-like protein ma-jd-viral-09822
Heat shock protein 90-like protein ma-jd-viral-17148
Major coat protein ma-jd-viral-15954
Minor coat protein ma-jd-viral-36357
Putative silencing suppressor ma-jd-viral-67384
RNA-dependent RNA polymerase 1b ma-jd-viral-19504
p19 ma-jd-viral-64181
p20 ma-jd-viral-45500
p6 ma-jd-viral-36411

Grapevine leafroll-associated virus 10 taxid:367121

Protein ModelArchive
60kDa protein ma-jd-viral-61006
Heat shock protein 70 ma-jd-viral-09821
Putative coat protein ma-jd-viral-15835
RNA dependent RNA polymerase ma-jd-viral-19495
Uncharacterized protein p23 ma-jd-viral-29352

Grapevine leafroll-associated virus 13 taxid:1815581

Protein ModelArchive
22 kDa protein ma-jd-viral-39813
23 kDa protein ma-jd-viral-31130
53 kDa protein ma-jd-viral-46814
6 kDa protein ma-jd-viral-63204
Heat shock protein 70 homolog ma-jd-viral-09799
Putative coat protein ma-jd-viral-16049
Putative minor coat protein ma-jd-viral-58348
Putative transmembrane protein ma-jd-viral-40234
Putative transmembrane protein ma-jd-viral-60479
Putative transmembrane protein ma-jd-viral-54342
RNA-dependent RNA polymerase ma-jd-viral-19508

Grapevine leafroll-associated virus 5 taxid:71032

Protein ModelArchive
CPd (Duplicate coat protein) ma-jd-viral-29351
Coat protein ma-jd-viral-15836
Heat shock protein 70 homolog ma-jd-viral-09813
RNA-dependent RNA polymerase ma-jd-viral-19491
p60 protein ma-jd-viral-61004

Plum bark necrosis stem pitting-associated virus taxid:675077

Protein ModelArchive
Heat shock protein 70-like protein ma-jd-viral-09804
Hydrophobic protein (P6) ma-jd-viral-62834
Major capsid protein ma-jd-viral-15833
Minor capsid protein ma-jd-viral-37658
RNA-dependent RNA polymerase ma-jd-viral-19498
p61 ma-jd-viral-61003