>4fqx_B mol:protein length:208 HLA class II histocompatibility antigen, DRB1-1 beta chain VLFQGPGDTRPRFLWQLKFECHFFNGTERVRLLERSIYNQEESVRFDSDVGEYRAVTEL GRPDAEYWNSQKDLLEQRRAAVDTYCRHNYGVGESFTVQRRVEPKVTVYPSKTQPLQHH NLLVCSVSGFYPGSIEVRWFRNGQEEKAGVVSTGLIQNGDWTFQTLVMLETVPRSGEVY TCQVEHPSVTSPLTVEWRARSSGGGSLPATG