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