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Length of genome (Du et al., 2016, Phan et al., 2011, Lim et al., 2014): c. 8,931 nt (5'-UTR: up to 828 nt; ORF: 7,413 nt; 3' UTR: up to 795 nt). 5'-UTR harbours a type II IRES. 3'-UTR is the longest of picornaviruses. The location of the cre has not been identified.
Genome layout:
VPg+5'UTRIRES-II[1AB-1C-1D-2Anpgp/2B-2C/3A-3B-3C-3D]3'UTR-poly(A)
The deduced polyprotein has a length of 2,468 aa. 1AB remains uncleaved. 2A is an aphthovirus-like polypeptide with NPG¯P motif.
Viral RNA was detected in faecal samples of human and rodents [canyon mouse (Peromyscus crinitus), rat (Rattus norvegicus)].
The single species Rosavirus A includes two genetic types.
Further related genome sequences have been identified in rats (Rattus norvegicus, R. andamanensis, R. rattus, R. losea, Niviventer fulvescens and N. coxingi) which probably belong to two new rosavirus species.
Rosa: from rodent stool-associated
Virus name
Accession number
Virus abbreviation
Rosavirus B1
[rat/RNCW0602091R/HKN/2009]
KX783423
RoV-B1
Rosavirus C1
[rat/RATLC11A/HKN/2009]
KX783425
RoV-C1
Rosavirus C2
[rat/RASK8F/HKN/2008]
KX783424
RoV-C2
[rodent/RL/PicoV/FJ2015]
KX156156
Rosavirus C3
[rat/NCGX12IN/CHA/2010]
KX783432
RoV-C3