>3iy1_A mol:protein length:107 Fab B, light chainLMTQIPPSLSASLGDKVTITCQASQNINKYIAWYQQKPGKVPGLLIHYTSTLVSGIPSRFSGSGSGRDYSFSISNVESEDIASYYCLQYDSSPRTFGGGTKLELKRA