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Length of genome (Woo et al., 2010): c. 7,640-7,678 nt (5'-UTR: 636-646 nt; ORF: 6,765-6,774 nt; 3' UTR: 238-256 nt). The location of the cre has not been identified.
The deduced polyprotein has a length of 2,255-2,258 aa. The genome encodes a L protein. 1AB remains uncleaved (with myristoylation signal). 2A protein has unknown function.
Viral RNA was detected in faeces of the oriental magpie robin (Copsychus saularis) and the grey-backed thrush (Turdus hortulorum). Two genetic virus types are defined.
The single species Oscivirus A includes two genetic types classified by means of phylogenetic clustering.
Osci: from Oscines (Latin oscen, 'a songbird')
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