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Virology. 1995 Feb 1;206(2):973-83.

Complete nucleotide sequences of the M and S segments of two hantavirus isolates from California: evidence for reassortment in nature among viruses related to hantavirus pulmonary syndrome.

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1
Virology Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, Federick, Maryland 21702-5011.

Abstract

We report the complete nucleotide sequence of the M and the S genome segments and a portion of the L segments of two hantavirus isolates from Peromyscus maniculatus trapped in eastern California. The isolates, Convict Creek 107 and 74 (CC107 and CC74) are genetically similar to viruses known to cause hantavirus pulmonary syndrome in New Mexico. CC107 and CC74 each have an M segment consisting of 3696 nucleotides with a coding potential of 1140 amino acids in the virus complementary-sense RNA (cRNA). The S segments of CC107 and CC74 are 2083 and 2047 nucleotides long, respectively, and each has an ORF in the cRNA capable of encoding a protein of 428 amino acids. Unusually long 3' noncoding regions of 757 and 721 nucleotides follow the S segment ORF of CC107 and CC74, respectively, and include numerous imperfect repetitive sequences. Whereas the M and S segments of any given hantavirus typically appear to diverge at comparable rates from homologous genes of any other hantavirus, CC107 and CC74 have M segments that differ by only 1% from one another but S segments that differ by 13%. After trivial explanations are rendered improbable, i.e., by consideration of the genetics of closely and distantly related hantaviruses, the most likely explanation for our data is that hantavirus genome segment reassortment occurred within rodent populations in California.

PMID:
7856108
DOI:
10.1006/viro.1995.1020
[Indexed for MEDLINE]
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