>d1j8hb2 d.19.1.1 (B:3-92) Class II MHC beta chain, N-terminal domain {Human (Homo sapiens), HLA-DR4} trprfleqvkhechffngtervrfldryfyhqeeyvrfdsdvgeyravtelgrpdaeywn sqkdlleqkraavdtycrhnygvgesftvq