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J Virol. 2006 Apr;80(8):4196-9.

Hepatitis C virus protease gene diversity in patients coinfected with human immunodeficiency virus.

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  • 1Division of Infectious Diseases and Geographic Medicine, Stanford University, California, USA.

Abstract

The clonal variability of the hepatitis C virus (HCV) protease gene in 24 individuals with HCV genotypes 1a, 1b, 2b, and 3a who were coinfected with the human immunodeficiency virus was evaluated. Within-genotype variability at the nucleotide and amino acid levels ranged from 6.5 to 8.6% and 2.2 to 3.8%, respectively. After adjustments were made for correlation of intrapatient clonal variation, mixed-model analysis indicated that nucleotide and amino acid variability among patients with different genotypes did not differ significantly. However, within individual patients, clonal variability differed by up to 5.3% and 5.8% at the nucleotide and amino acid levels, respectively, and genotype 1a had significantly greater nucleotide variability than other genotypes (P = 0.01). Significant variability exists within HCV protease gene variants at the patient level and could affect the effectiveness of HCV protease inhibitors.

PMID:
16571838
[PubMed - indexed for MEDLINE]
PMCID:
PMC1440459
Free PMC Article

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