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AIDS Res Hum Retroviruses. 2012 Oct;28(10):1357-61. Epub 2012 Apr 5.

Identification of a novel HIV type 1 circulating recombinant form (CRF52_01B) in Southeast Asia.

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  • 1Department of AIDS Research, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, China.

Abstract

Thirty HIV-1 URF_01AE/ B' complete or nearly full-length genome sequences sampled within Southeast Asia were obtained from the Los Alamos HIV Sequence Database. Phylogenetic and recombinant analyses revealed that three sequences indeed displayed the identical recombinant structure. Of note, the three subjects, harboring novel CRF01_AE/B recombinants, did not have apparent epidemiological linkage. They fulfilled the criteria for the designation of a new circulating recombinant form (CRF) and constituted the 52nd CRF identified in the worldwide HIV-1 pandemic. In this chimera, two short subtype B segments were inserted into a backbone of CRF_01AE. The breakpoints corresponded to HXB2 nucleotide positions 2930, 3251, 8521, and 9004 approximately. This CRF is the first one identified by neatening and analyzing the sequences already presented in the Los Alamos HIV Sequence Database. This indicates that we should pay attention not only to explicit subtype sequences but also to those classified as a unique recombinant form (URF) so far.

PMID:
22269007
[PubMed - indexed for MEDLINE]
PMCID:
PMC3448130
Free PMC Article

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