>3PWU_1|Chain A|MHC class I antigen|Bos taurus (9913)
SHSLRYFYTAVSRPGLGEPRFIAVGYVDDTQFTRFDSDAPNPRDEPRVPWMEQEGPEYWDRNTRIYKDTAQIFRANLNTALGYYNQSEAGSHTFQEMYGCYVGPDGRLLLGFMQFAYDGRDYIALNEDLRSWTAADTAAQITKRKWEAAGEAERQRNYLEGRCVEGLRRYLENGKDTLLRADPPKAHVTHHPISDREVTLRCWALGFYPEEISLTWQHEGEDQTQDMELVETRPSGDGTFQKWAALVVPSGEEQRYTCRVQHEGLQEPLTLRWE
>3PWU_2|Chain B|Beta-2-microglobulin|Mus musculus (10090)
IQKTPQIQVYSRHPPENGKPNILNCYVTQFHPPHIEIQMLKNGKKIPKVEMSDMSFSKDWSFYILAHTEFTPTETDTYACRVKHDSMAEPKTVYWDRDM
>3PWU_3|Chain C|IPA from Hemagglutinin glycoprotein|null
IPAYGVLTI