Assignment of HLA-Class II α and β Chain 2-D Gel Patterns for the Workshop Reference Panel of B-Lymphoblastoid Cell Lines

  • Robert W. Knowles


A comprehensive analysis of structural polymorphism in the HLA class II antigens has been performed using a standardized two-dimensional (2-D) gel electrophoresis system. Details of the analysis are presented in these proceedings (Volume I). Polymorphic patterns have been defined for the α and β chains of the DR and DQ molecules isolated from 71 of the Workshop core B-cell lines representing 34 functionally distinct HLA class II haplotypes (Table 1). For the DR molecules, a total of 19 DRβ chain patterns were found associated with the DRB1 locus, with five additional patterns associated with a second expressed DRB gene. For the DQ molecules, 10 β chain patterns were found, along with 9 DQα chain patterns. For the DP molecules, two DPα chain patterns were found, but the DPβ chains were not resolved. This corresponds well to the extent of polymorphism found in the first domain sequences of cloned DR and DQ genes from these haplotypes. While some of the known sequence variation does not result in distinct 2-D gel patterns, additional polymorphism has been found in this study, where first domain sequences are identical.


Lymphoblastoid Cell Line Reference Panel Chain Pattern Ence Panel Core Cell Line 
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© Springer-Verlag New York 1989

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  • Robert W. Knowles

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