Nucleotide sequence of the Lassa virus (Josiah strain) S genome RNA and amino acid sequence comparison of the N and GPC proteins to other arenaviruses.
The complete nucleotide sequence of the S genome RNA of the Josiah strain of Lassa virus was determined from cloned cDNA. The S RNA is 3402 nucleotides long with a calculated molecular weight of 1.09 x 10(6) Da. The nucleotide base composition is 26.84% adenine, 21.40% guanine, 22.75% cytosine, and 29.01% uridine. The 5' and 3' terminal nucleotide sequences are conserved and complimentary for 19 nucleotides, the nucleoprotein and glycoprotein genes are arranged in ambisense coding strategy, and the intergenic region contains an inverted complimentary sequence, as do all other arenavirus S RNAs characterized to date. Amino acid sequence comparisons between the nucleoproteins and glycoproteins of the Josiah and Nigerian (N sequences only) strains of Lassa virus, the WE and ARM strains of lymphocytic choriomeningitis virus (LCMV), Tacaribe, and Pichinde viruses are presented. These findings reveal that the G2 envelope glycoprotein is more conserved among different arenaviruses than the internal nucleoprotein.[1]References
- Nucleotide sequence of the Lassa virus (Josiah strain) S genome RNA and amino acid sequence comparison of the N and GPC proteins to other arenaviruses. Auperin, D.D., McCormick, J.B. Virology (1989) [Pubmed]
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