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  • Title: CD45 variant alleles: possibly increased frequency of a novel exon 4 CD45 polymorphism in HIV seropositive Ugandans.
    Author: Stanton T, Boxall S, Bennett A, Kaleebu P, Watera C, Whitworth J, French N, Dawes R, Hill AV, Bodmer W, Beverley PC, Tchilian EZ.
    Journal: Immunogenetics; 2004 May; 56(2):107-10. PubMed ID: 15057492.
    Abstract:
    The CD45 (leucocyte common) antigen is a haemopoietic cell specific tyrosine phosphatase essential for antigen receptor signalling in lymphocytes, and expression of different CD45 isoforms is associated with distinct functions. Here we describe a novel polymorphism in exon 4 (A54G) of the gene encoding CD45 (PTPRC) that results in an amino acid substitution of Thr-19 to Ala in exon 4. The 54G allele was identified in African Ugandan populations and was found with a suggestive but not statistically significant increase in frequency amongst HIV-seropositive Ugandans. This suggests that the 54G variant and CD45 splicing abnormalities might be associated with HIV infection.
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