>1PYW_2|Chain B|HLA class II histocompatibility antigen, DR-1 beta chain|Homo sapiens (9606) GDTRPRFLWQLKFECHFFNGTERVRLLERCIYNQEESVRFDSDVGEYRAVTELGRPDAEYWNSQKDLLEQRRAAVDTYCRHNYGVGESFTVQRRVEPKVTVYPSKTQPLQHHNLLVCSVSGFYPGSIEVRWFRNGQEEKAGVVSTGLIQNGDWTFQTLVMLETVPRSGEVYTCQVEHPSVTSPLTVEWRA >1PYW_4|Chain D|Enterotoxin type C-3|Staphylococcus aureus subsp. aureus Mu50 (158878) ESQPDPMPDDLHKSSEFTGTMGNMKYLYDDHYVSATKVKSVDSFFKWDLIYNISDKKLKNYDKVKTELLNEDLAKKYKDEVVDVYGSNYYVNCYFSSKDNVGKVTGGKTCMYGGITKHEGNHFDNGNLQNVLVRVYENKRNTISFEVQTDKKSVTAQELDIKARNFLINKKNLYEFNSSPYETGYIKFIENNGNTFWYDMMPAPGDKFDQSKYLMMYNDNKTVDSKSVKIEVHLTTKNG >1PYW_1|Chain A|HLA class II histocompatibility antigen, DR alpha chain|Homo sapiens (9606) IKEEHVIIQAEFYLNPDQSGEFMFDFDGDEIFHVDMAKKETVWRLEEFGRFASFEAQGALANIAVDKANLEIMTKRSNYTPITNVPPEVTVLTNSPVELREPNVLICFIDKFTPPVVNVTWLRNGKPVTTGVSETVFLPREDHLFRKFHYLPFLPSTEDVYDCRVEHWGLDEPLLKHWEFDA >1PYW_3|Chain C|9-residue influenza virus hemagglutinin related peptide FVKQNA(MAA)AL|null XFVKQNAAAL