[Polymorphism of CXCR4 coding region of human immunodeficiency virus-1 in Chinese Han people]
Ming-xu Liu1, Fu-sheng Wang, Wei-guo Hong
1The No. 302 Hospital of PLA, Beijing 100039, China.
Insights
Polymorphism in the human immunodeficiency virus (HIV)-1 coreceptor CXCR4 gene was studied in the Chinese Han population. Seven single nucleotide polymorphisms (SNPs) were identified, with six being novel findings.
Area of Science:
- Genetics
- Virology
- Immunology
Background:
- The human immunodeficiency virus (HIV)-1 coreceptor CXCR4 plays a critical role in viral entry.
- Understanding genetic variations in CXCR4 is crucial for developing effective AIDS prevention and treatment strategies.
Purpose of the Study:
- To investigate the genetic polymorphism of the CXCR4 gene in the Chinese Han ethnic group.
- To identify single nucleotide polymorphisms (SNPs) within the CXCR4 coding region relevant to HIV-1 infection.
Main Methods:
- DNA was extracted from 48 individuals of Chinese Han ethnicity.
- The CXCR4 coding region was amplified using PCR and sequenced.
- DNAstar software was employed to analyze sequencing data and identify SNPs.
Main Results:
- Seven single nucleotide polymorphisms (SNPs) were identified in the CXCR4 coding region.
- These included three synonymous mutations, three missense mutations, and one stop mutation.
- Six of the identified SNPs represent novel discoveries.
Conclusions:
- The CXCR4 genetic polymorphism in the Chinese Han population may differ from other ethnic groups.
- The identified novel SNPs warrant further investigation for their impact on HIV-1 disease progression.
- These findings contribute to personalized approaches in AIDS treatment and prevention.
Objective:
To study the polymorphism of human immunodeficiency virus (HIV)-1 coreceptor CXCR4 in Chinese Han ethnic group for AIDS prevention and treatment.
Methods:
Totally 48 individuals were enrolled into the study. CXCR4 (cDNA No-AF147204) was cloned by PCR amplification using 2 pairs of primers, then sequenced using sequencing primers. The results of the same sequencing primers were analyzed by DNAstar software to find and identify single nucleotide polymorphism (SNP) sites.
Results:
Totally 7 SNPs were found in the coding region of CXCR4, among them 3 were synonymous mutation (C-->T at loci 129, 426 and 968), 3 were missense mutation (C-->T at locus 38, A-->T at locus 90, and A-->C at locus 712) and 1 was stop mutation (C-->T at 106, which converted the codon for glutamic acid into stop codon).
Conclusions:
The polymorphism of CXCR4 coding region in Chinese Han is probably different from that of the other ethnic groups. Six of the 7 SNPs were discovered for the first time. Their influences on AIDS progression are worthy of studying.
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