Identification of Two Novel HIV-1 Recombinant Forms Originated from CRF01_AE and Subtype B in the Sexual Contact Population in Hebei Province, China
- 1 February 2023
- journal article
- research article
- Published by Mary Ann Liebert Inc in AIDS Research and Human Retroviruses
- Vol. 39 (2), 91-97
- https://doi.org/10.1089/aid.2022.0124
Abstract
Two near full-length genome (NFLG) sequences of HIV-1 with undefined subtypes were analyzed to confirm the recombinant characteristics. In order to analyze the gene recombination patterns and breakpoints of these two NFLGs, the phylogenetic trees based on the NFLG sequences and their subregions were constructed, respectively. Sequences 233 and 953 are novel second-generation recombinant forms of HIV-1 CRF01_AE and subtype B. The NFLG phylogenetic tree analysis showed that these two NFLG sequences formed a unique monophyletic branch, respectively. The recombination breakpoints analysis showed that the recombination pattern of both sequences was that a subtype B fragment was inserted into a CRF01_AE backbone. Subregions I, II and III were from CRF01_AE, subtype B and CRF01_AE, respectively. The recombination breakpoints relative to HXB2 of sequences 233 and 953 were 2400 and 4870, and 3363 and 4828, respectively. The emergence of novel recombinant forms of CRF01_AE/B demonstrates that we should carry out the ongoing surveillance of HIV-1 recombinant forms in sexually transmitted population.Keywords
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