HLA class II histocompatibility antigen, DRB1 beta chain SCMTALTVTLMVLSSPLALAGDTRPRFLWQLKFECHFFNGTERVRLLERCIYNQEESVRFDSDVGEYRAVTELGRPDAEYWNSQKDLLEQRRAAVDTYCRHNYGVGESFTVQRRVEPKVTVYPSKTQPLQHHNLLVCSVSGFYPGSIEVRWFRNGQEEKAGVVSTGLIQNGDWTFQTLVMLETVPRSGEVYTCQVEHPSVTSPLTVE SIHTAITCFFLQISA----------RFLWQGKYKCHFFNGTERVQFLERLFYNQEEFVRFDSDVGEYRAVTELGRPVAESWNSQKDILEDRRGQVDTVCRHNYGVGESFTVQRRVHPEVTVYPAKTQPLQHHNLLVCSVSGFYPGSIEVRWFRNGQEEKAGVVSTGLIQNGDWTFQTLVMLETVPRSGEVYTCQVEHPSVMSPLTVE XLLKLTRDFP QRHEKYQSWA GTFHLCLKKN KYPDSRSTFI KHAGSYLKRG EFLSIHTAIT CFFLQISARF LWQGKYKCHF FNGTERVQFL ERLFYNQEEF VRFDSDVGEY RAVTELGRPV AESWNSQKDI LEDRRGQVDT VCRHNYGVGE SFTVQRRVHP EVTVYPAKTQ PLQHHNLLVC SVSGFYPGSI EVRWFRNGQE EKAGVVSTGL IQNGDWTFQT LVMLETVPRS GEVYTCQVEH PSVMSPLTVE