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Quantification and molecular analysis of plasmatic HLA-BCw molecules with a locus B and Cw HLA specific mAb (B1.23.2
Abstract:
Plasmatic HLA class I molecules were analysed quantitatively and qualitatively with a B and Cw locus-specific mAb, B1.23.2. sHLA-BCw were detected among all individuals with a wide range of concentration. The HLA-A29(19) allele was significantly associated with an increased sHLA-BCw mean concentration. Three different isoforms of relative molecular weights of 44, 39 and 36kDa were detected. The 39 kDa class I heavy chain was not detected after immunoprecipitation with mAb B1.23.2 in 17% of tested plasma, but was immunoprecipitated with W6/32 mAb.