Abstract
Determined is the complete genome sequence of Kolarovo-2008 strain (Siberia subtype) of Tick-borne encephalitis virus (TBEV), isolated from a tick in the suburbs of the Tomsk city. Nucleotide sequence analysis testifies of the fact that the level of genetic differences within the Siberian subtype of TBEV amounts to 10 % of the nucleotide sequence and to 7 % of amino-acid sequence for certain virus genes. 3'-HTO of the genome of Siberian subtype has the highest rate of variability and the homology level ranging from 65 to 97 %. Kolarovo-2008 and Vasilchenko (isolated in Novosibirsk in 1969) strains have the highest level of genome homology. The level of dissimilarity between the two Tomsk strains is substantially higher: the total number of amino-acid substitutions in Tomsk Zausaev and Kolarovo-2008 strains equals to 124, and 3'HTO level of homology is 79 %. Identified genetic variability of the Siberian subtype of TBEV is of a great importance for further development and enhancement of tick-borne encephalitis virus diagnostics.
Highlights
Molecular Genetic Analysis of the Complete Genome of Tick-Borne Encephalitis Virus (Siberia Subtype): Modern Kolarovo-2008 Isolate
Nucleotide sequence analysis testifies of the fact that the level of genetic differences within the Siberian subtype of Tick-borne encephalitis virus (TBEV) amounts to 10 % of the nucleotide sequence and to 7 % of amino-acid sequence for certain virus genes. 3’-HTO of the genome of Siberian subtype has the highest rate of variability and the homology level ranging from 65 to 97 %
Identified genetic variability of the Siberian subtype of TBEV is of a great importance for further development and enhancement of tick-borne encephalitis virus diagnostics
Summary
Длина полного генома штамма Коларово-2008 ВКЭ составила 10928 н.о. Уровни гомологии нуклеотидных последовательностей и выведенной аминокислотной последовательности штамма Коларово2008 в сравнении с прототипными штаммами флавивирусов даны в табл. 1. Уровень гомологии внутри сибирского генотипа колеблется от 90 до 100 % для полной нуклеотидной последовательности и от 93 до 100 % для аминокислотной последовательности в сравнении с Коларово-2008. Дальневосточный и европейский субтипы отличаются от сибирского генотипа весьма существенно, а уровень отличий достигает 17 % по нуклеотидной последовательности и
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