>8d7e_D mol:protein length:220 REGN8938 antibody Fab fragment heavy chainQVQLVESGGDVVQPGRSLRLSCAASGFTFSYYGMHWVRQPPGKGLEWVTIISFDGSQKYYADSVKGRFTISRDNSKNTVFLQMNSLRTEDTGFYYCAAQSSTWPEYFQYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVES