>7bu8_L mol:protein length:107 SIgN-3C Fab light chainDIQLTQSPSSLSASVGDRVTFTCQASQDIRKYLNWYQQKPGKAPKLLIYDASNLKTGVPSRFSGSGSGTDFTFTISSLQPEDVATYYCQQFDDLPITFGQGTRLQIK