>3t0e_B mol:protein length:221 HLA class II histocompatibility antigen, DRB1-4 beta chain FSWGAEGQRPGFGSGGGSLVPRGSGGGGSGDTRPRFLEQVKHECHFFNGTERVRFLDRY FYHQEEYVRFDSDVGEYRAVTELGRPDAEYWNSQKDLLEQKRAAVDTYCRHNYGVGESF TVQRRVYPEVTVYPAKTQPLQHHNLLVCSVNGFYPGSIEVRWFRNGQEEKTGVVSTGLI QNGDWTFQTLVMLETVPRSGEVYTCQVEHPSLTSPLTVEWRARS