>6XY2_1|Chain A|Cytotoxic T-lymphocyte protein 4|Homo sapiens (9606) MHVAQPAVVLASSRGIASFVCEYASPGKATEVRVTVLRQADSQVTEVCAATYMMGNELTFLDDSICTGTSSGNQVNLTIQGLRAMDTGLYICKVELMYPPPYYLGIGNGTQIYVIDPEPCPDS >6XY2_2|Chain B[auth H]|Heavy chain|Homo sapiens (9606) QVQLQESGPGLVKPSETLSLTCTVSGFSLTSYGLSWIRQPPGKGLEWIGYIWYDGNTNFHSPLKSRVTISVDTSKNQFSLKLSSVTAADTAVYYCAKTEGHYYGSNYGYYALDYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTMDPGGSHHHHHHHH >6XY2_3|Chain C[auth L]|Light chain|Homo sapiens (9606) DIQMTQSPSSLSASVGDRVTITCRASENIYSNLAWYQQKQGKAPKLLLYAATNLQDGVPSRFSGSGSGTDYTLTISSLQPEDFATYFCQHLWGTPYTFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC