>d1hezc1 b.1.1.1 (C:1-107) Immunoglobulin (variable domains of L and H chains) {Fab of human IgM RF 2A2} diqmtqspsslsasvgdrvtitcrtsqsissylnwyqqkpgkapklliyaasslqsgvps rfsgsgsgtdftltisslqpedfatyycqqsystprtfgqgtkveik