>1J4R_1|Chains A, B, C[auth D]|FK506-BINDING PROTEIN|Homo sapiens (9606) GVQVETISPGDGRTFPKRGQTCVVHYTGMLEDGKKFDSSRDRNKPFKFMLGKQEVIRGWEEGVAQMSVGQRAKLTISPDYAYGATGHPGIIPPHATLVFDVELLKLE