Survey of the allelic frequency of a NOS2A promoter microsatellite in human populations: assessment of the NOS2A gene and predisposition to infectious disease. |
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| Authors: | W Xu S Humphries M Tomita T Okuyama M Matsuki D Burgner D Kwiatkowski L Liu I G Charles |
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| Institution: | Wolfson Institute for Biomedical Research, University College London, Cruciform Building, London, WC1E 6AU, United Kingdom. w.xu@ucl.ac.uk |
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| Abstract: | Allelic frequencies of a (CCTTT)(n) pentanucleotide repeat in the NOS2A promoter region were determined in a total of 1393 unrelated individuals from five specific population groups in four continents: Africa, Europe, Asia, and the Caribbean. There were highly significant differences in allele frequencies between the ethnically diverse populations. The repeat variation may have implications for the selective pressure of malaria or other infectious diseases that may operate at the NOS2 locus. |
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