>6qna_F mol:protein length:214 B4 light chainQAVLTQPPSVSGSLGQRVSITCSGSSSNIGRWGVNWYQQVPGSGLRTIIYYESSRPSGVPDRFSGSKSGNTATLTISSLQAEDEADYFCATGDYNIAVFGSGTTLIVMGQPKSPPSVTLFPPSTEELNGNKATLVCLISDFYPGSVTVVWKADGSTITRNVETTRASKQSNSKYAASSYLSLTSSDWKSKGSYSCEVTHEGSTVTKTVKPSECS