Abstract
Junin virus strain Candid #1 was developed as a live attenuated vaccine for Argentine haemorrhagic fever. In this paper, we report the nucleotide sequences of L RNA of Candid #1 and examine the relationship to its more virulent ancestors Junin virus XJ#44 and XJ 13 (prototype) and other closely and distantly related arenaviruses. Comparisons of the nucleotide and amino acid sequences of L and Z genes of Candid #1 and its progenitor strains revealed twelve point mutations in the L polypeptide that are unique to the vaccine strain. These changes could be provisionally associated with the attenuated phenotype. In contrast, Z ORF was completely conserved among all strains.
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Acknowledgements
We are very grateful to Dr. J. G Barrera Oro from USAMRJID (Frederick, Maryland, USA) who provided us with an XJ#44 seed and to Dr. María del Carmen Saavedra who prepare Candid #1 virions. This work was supported by PICT 6654 from ANPCYT and PIP 1076 from CONICET (Argentina). S. G. had a research fellowship from ANPCYT and now holds a research fellowship from CONICET, J. I. holds a research fellowship from CONICET and M. E. L., P. D. G. and V. R. are members of the research career of CONICET.
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The nucleotide sequences data of the of the L RNA of the Junin virus strains reported in this paper have been submitted to the GenBank nucleotide sequence database and have been assigned the accession numbers: AY819707.
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Goñi, S.E., Iserte, J.A., Ambrosio, A.M. et al. Genomic Features of Attenuated Junín Virus Vaccine Strain Candidate. Virus Genes 32, 37–41 (2006). https://doi.org/10.1007/s11262-005-5843-2
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DOI: https://doi.org/10.1007/s11262-005-5843-2