>1PY4_1|Chains A, B, C, D|Beta-2-microglobulin precursor|Homo sapiens (9606)
MIQRTPKIQVYSRHPAENGKSNFLNCYVSGFYPSDIEVDLLKNGERIEKVEHSDLSFSKDWSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM