>4aen_B mol:protein length:199 HLA CLASS II HISTOCOMPATIBILITY ANTIGEN, DRB1-1 BETA CHAIN MGDTRPRFLWQLKFECHFFNGTERVRLLERCIYNQEESVRFDSDVGEYRAVTELGRPDA EYWNSQKDLLEQRRAAVDTYCRHNYGVGESFTVQRRVEPKVTVYPSKTQPLQHHNLLVC SVSGFYPGSIEVRWFRNGQEEKAGVVSTGLIQNGDWTFQTLVMLETVPRSGEVYTCQVE HPSVTSPLTVEWRARSESAQSK