Virion

Nucleic acid

Length of genome (Boros et al., 2013): c. 7,272 nt (5'-UTR: 500 nt; ORF: 6,747 nt; 3'-UTR: 25 nt). 5' UTR contains a type IV-B IRES. The 3' UTR is the shortest of picornaviruses, at 25 nt. The location of the cre has not been identified.

Genome organization and replication

Genome layout:

VPg+5'UTR^IRES-IVB[1AB-1C-1D-2A1^NPGP/2A2-2B-2C/3A-3B-3C-3D]3'UTR-poly(A)

The deduced polyprotein has a length of 2,248 amino acids. There is no L protein. 1AB remains uncleaved. 2A1 is a short FMDV typeA-like polypeptide (NPG¯P), 2A2 protein has unknown function.

Antigenicity

See discussion under family description.

Biology

Viral RNA was detected in faeces of an apparently healthy European roller (Coracias garrulus). 

Species demarcation criteria

Members of a species of the genus Kunsagivirus share a common genome organization.

The divergence (number of differences per site between sequences) of known Kunsagivirus species accounts for 0.51 for P1 and 0.52 for 3CD.

Member species

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.

Derivation of names

Kunsagi: from the name of part of the Great Hungarian Plain – "Kunság" – where the samples were collected

Related, unclassified viruses

Virus names and virus abbreviations are not official ICTV designations.