>tr|A0A075M4J2|A0A075M4J2_HUMAN MHC class II antigen (Fragment) OS=Homo sapiens OX=9606 GN=HLA-DRB1 PE=2 SV=1 RFLEQVKHECHFFNGTERVRFLDRYFYHQEEYVRFDSDVGEYRAVTELGRPSAEYWNSQK DLLEQRRAAVDTYCRHNYGVVESFTVQRRVYPEVTVYPAKTQPLQHHNLLVCSVNGFYPG SIEVRWFRNGQEEKTGVVSTGLIQNGDWTFQTLVMLETVPRSGEVYTCQVEHPSLTSPLT VEWRARSESAQSKMLSGVGGFVLGLLFLGAGLFIYFRNQK