>8tg9_L mol:protein length:213 REGN5381 Fab light chainNIQMTQSPSSLSASVGDRVTITCRASQSIDSYLNWYQQKPGKAPKLLIYVASSLQSGVPSRFSGSGSGKDFTLTISSLQPEDFATYYCQQSYSIPTFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC