Analysis of the complete genome of the first Irkut virus isolate from China: comparison across the Lyssavirus genus

Ye Liu, Nan Li, Shoufeng Zhang, Fei Zhang, Hai Lian, Ying Wang, Jinxia Zhang, Rongliang Hu
Molecular Phylogenetics and Evolution 2013, 69 (3): 687-93
The genome of Irkut virus, isolate IRKV-THChina12, the first non-rabies lyssavirus from China (of bat origin), has been completely sequenced. In general, coding and non-coding regions of this viral genome are similar to those of other lyssaviruses. However, alignment of the deduced amino acid sequences of the structural proteins of IRKV-THChina12 with those of other lyssavirus representatives revealed significant variability between viral species. The nucleoprotein and matrix protein were found to be the most conserved, followed by the large protein, glycoprotein and phosphoprotein. Differences in the antigenic sites in glycoprotein may result in only partial protection of the available rabies biologics against Irkut virus, which is of particular concern for pre- and post-exposure rabies prophylaxis.

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