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Science. 2007 Mar 16;315(5818):1583-6.

Founder effects in the assessment of HIV polymorphisms and HLA allele associations.

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1
Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

Abstract

Escape from T cell-mediated immune responses affects the ongoing evolution of rapidly evolving viruses such as HIV. By applying statistical approaches that account for phylogenetic relationships among viral sequences, we show that viral lineage effects rather than immune escape often explain apparent human leukocyte antigen (HLA)-mediated immune-escape mutations defined by older analysis methods. Phylogenetically informed methods identified immune-susceptible locations with greatly improved accuracy, and the associations we identified with these methods were experimentally validated. This approach has practical implications for understanding the impact of host immunity on pathogen evolution and for defining relevant variants for inclusion in vaccine antigens.

PMID:
17363674
DOI:
10.1126/science.1131528
[Indexed for MEDLINE]
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