>4yue_L mol:protein length:227 S4B6 Fab light chainADPDIQVTQSPASLSASLEEIVTITCQASQDIGNYLSWYQQKLGKSPQLLIHSATSLADGVPSRFSGSRSGTQYSLKINRLQVEDTGIYYCLQHYSTPYTFGAGTKLELKRADAAPTVSIFPPSSEQLASGGASVVCLLNNFYPKDISVKWKIDGSERQNGVLDSVTDQDSKDSTYSMSSTLTLTKAEYESHNSYTCEVTHKTSTSPVVKSFNRGECSRGGLEVLFQ