>1xr9_C mol:protein length:9 Ubiquitin-conjugating enzyme E2 E1 ILGPPGSVY >1xr9_C mol:protein length:9 Ubiquitin-conjugating enzyme E2 E1 ILGPPGSVY >1xr9_A mol:protein length:276 HLA class I histocompatibility antigen, B-15 alpha chain GSHSMRYFYTAMSRPGRGEPRFIAVGYVDDTQFVRFDSDAASPRMAPRAPWIEQEGPEY WDRETQISKTNTQTYRESLRNLRGYYNQSEAGSHTLQRMYGCDVGPDGRLLRGHDQSAY DGKDYIALNEDLSSWTAADTAAQITQRKWEAAREAEQWRAYLEGLCVEWLRRYLENGKE TLQRADPPKTHVTHHPISDHEATLRCWALGFYPAEITLTWQRDGEDQTQDTELVETRPA GDRTFQKWAAVVVPSGEEQRYTCHVQHEGLPKPLTLRWEP >1xr9_B mol:protein length:99 Beta-2-microglobulin IQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKD WSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM