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Length of genome (Lau et al., 2014, Bullman et al., 2014): up to 9,809 nt (5'-UTR: up to 939 nt; ORF: 8,595; 3'-UTR: 308 nt). 5'-UTR contains a predicted type II IRES. The location of the cre has not been identified.
The deduced polyprotein has 2,864 amino acids. There is a L protein unknown function. 1AB remains uncleaved. 2A protein has a H-box/NC motif.
Viral RNA was detected in faeces of chickens.
Within the single species Sicinivirus A, sequence data indicate five genetic types.
Sicini: from Gaelic sicín, "chicken"
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