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Volume 22, Issue 5
  • ISSN: 1570-162X
  • E-ISSN: 1873-4251

Abstract

Background

In the Hebei province, Human Immunodeficiency Virus type one (HIV-1) recombinant strains of subtypes B, C, and CRF01_AE are emerging very rapidly and diversely.

Objective

In order to confirm the characteristics of novel recombination forms, we aimed to analyze HIV-1 Near-full-length Genome sequences (NFLGs) obtained from three Men who have Sex with Men (MSM) in this study.

Methods

Phylogenetic trees were constructed and breakpoints analysis were performed based on the NFLGs and each gene fragment to examine the gene recombination patterns of three new HIV-1 NFLGs.

Results

HIV-1 subtypes CRF01_AE and B were combined to generate the recombinant structures of the NFLGs 610 and 687. CRF01_AE, B, and C were combined to generate the recombinant structures of the NFLG 825. According to the NFLG phylogenetic tree, the NFLG 825 clustered with CRF65_cpx and the NFLGs 610 and 687 clustered with CRF68_01B. The recombination breakpoints analysis revealed that the recombination pattern of the NFLGs 610 and 687 was the insertion of subtype B fragment into the CRF01_AE backbone. Subregions I, II, and III were derived from CRF01_AE, subtype B, and CRF01_AE, respectively. The recombination pattern of the NFLG 825 contained ten fragments of subtypes CRF01_AE, C, and B. Finally, the above factors were formed using phylogenetic trees and breakpoints analysis, which were combined to get two CRF68_01B forms and one CRF65_cpx form.

Conclusion

Our findings have suggested that it is crucial to keep an eye on the genetic diversity of HIV-1 in Hebei province.

© 2024 Bentham Science Publishers
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2024-08-22
2025-01-10

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/content/journals/chr/10.2174/011570162X294091240812062836
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Identification of Two HIV-1 CRF01_AE/B Recombinant Forms and a CRF01_AE/B/C Recombinant Form in Hebei Province, China
Current HIV Research 22, 298 (2024); https://doi.org/10.2174/011570162X294091240812062836
/content/journals/chr/10.2174/011570162X294091240812062836
/content/journals/chr/10.2174/011570162X294091240812062836
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  • Article Type:     Research Article
Keyword(s): AIDS; HIV-1; MSM; NFLGs; novel recombination forms; phylogenetic trees and breakpoints analysis
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