>tr|E2J890|E2J890_LITCL MHC class II antigen beta chain (Fragment) OS=Lithobates clamitans OX=145282 PE=4 SV=1 YKGQCYYRNGTEDIWSVSRYIYNQEEYLYFDSDKGFYIPKTELGRLDAESYNKDPDILGQ ARAEVETICKHNYQIYKPAAIDLK