Partitiviridae

VIRION

Non-enveloped icosahedral capsid, about 35-40 nm in diameter with a T=2* icosahedral symmetry . The two genomic segments are encapsidated separately.

GENOME

Segmented linear dsRNA genome: 2 segments encoding potentially for 2 proteins. Segments are about 1.4-3.0 kb each, total size about 4 kb

GENE EXPRESSION

Each genomic segment is monocistronic.

REPLICATION

CYTOPLASMIC

  1. Virus penetrates into the cytoplasm.
  2. Transcription of the dsRNA genome by viral polymerase occurs inside the virion, so that dsRNA is never exposed to the cytoplasm. This plus-strand transcript is used as template for translation.
  3. (+)RNAs are encapsidated in virion particle, inside which they are transcribed to give RNA (-) molecules with which they become base-paired to produce dsRNA genomes.
  4. Mature are transmitted to new cell by cytoplasmic exchange, sporogenesis or Hyphal anastomosis.

Matching UniProtKB/Swiss-Prot entries

4 entries grouped by protein (browse by keywords)

2 entries

Capsid protein (CP) (Coat protein)

Select_allDeselect_all
CAPSD_CPVKS
Cryptosporidium parvum virus 1 (strain KSU-1) reference strain
CAPSD_WCCVB
White clover cryptic virus 1 (isolate Boccardo/2004) (WCCV-1) reference strain

2 entries

RNA-directed RNA polymerase (EC 2.7.7.48)

Select_allDeselect_all
RDRP_CPVKS
Cryptosporidium parvum virus 1 (strain KSU-1) reference strain
RDRP_WCCVB
White clover cryptic virus 1 (isolate Boccardo/2004) (WCCV-1) reference strain