Trichovirus (taxid:40276)



Non-enveloped, flexuous, filamentous,640-760 nm long and 10-12 nm in diameter.



Linear ssRNA(+) genome of 7.5-8.0 kb in size. The 3' terminus is polyadenylated. Encodes for 3 proteins.


The virion RNA is infectious and serves as both the genome and viral messenger RNA. RNA-dependent RNA polymerase (RdRp) is translated directly from the genomic RNA. ORF2 protein is translated by subgenomic RNA.




  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 as a monocistronic mRNA to produce the RdRp (encoded by the 5'-proximal ORF).
  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. Internal subgenomic promoters are used to transcribe the sgRNAs. Traduction of these sgRNAs yields the capsid and movement proteins.
  7. Assembly of new virus particles.
  8. Movement protein allows cell-to-cell movement.

Host-virus interaction

Suppression of RNA silencing

Apple chlorotic leaf spot virus 50 kDa movement protein acts as a systemic suppressor of RNA silencing through phloem .

Matching UniProtKB/Swiss-Prot entries

(all links/actions below point to website)

6 entries grouped by strain

3 entries

Apple chlorotic leaf spot virus (isolate plum P863) (ACLSV) reference strain

RDRP_ACLSP RNA-directed RNA polymerase (EC (216.5 kDa protein) (ORF1 protein) (RNA replicase)
MP_ACLSP Putative movement protein (50.8 kDa protein) (ORF2 protein)
CAPSD_ACLSP Capsid protein (Coat protein) (CP)

3 entries

Apple chlorotic leaf spot virus (isolate apple) (ACLSV)

RDRP_ACLSA RNA-directed RNA polymerase (EC (216.5 kDa protein) (ORF1 protein) (RNA replicase)
MP_ACLSA Putative movement protein (50.4 kDa protein) (ORF2 protein)
CAPSD_ACLSA Capsid protein (Coat protein) (CP)
These structures were created with the help of Colabfold by Jason Nomburg, Nathan Price and Jennifer Doudna (ModelArchive).

Cherry mottle leaf virus taxid:131226

Protein ModelArchive
15kDa protein ma-jd-viral-09281
22kDa protein ma-jd-viral-01343
47kDa protein ma-jd-viral-27795

Grapevine Pinot gris virus taxid:1051792

Protein ModelArchive
CP (Coat protein) ma-jd-viral-01323
Movement protein ma-jd-viral-27759

Peach mosaic virus taxid:183585

Protein ModelArchive
Putative coat protein ma-jd-viral-01327
Putative virus movement protein ma-jd-viral-27793
RNA silencing suppressor ma-jd-viral-09280

Trichovirus armeniacae taxid:307677

Protein ModelArchive
22 kDa protein ma-jd-viral-01337
51 kDa protein ma-jd-viral-27794