>6x9s_L mol:protein length:128 RM20A3 Fab Light ChainALTQPPSVSGSPGQSVTISCTGTSSDIGSYNYVSWYQQHPGKAPKLMIYDVTQRPSGVSDRFSGSKSGNTASLTISGLQADDEADYYCSAYAGRQTFYIFGGGTRLTVLGQPKASPTVTLFPPSSEEL