>9pzb_Q mol:protein length:108 E4K Fab light chainEIVLTQFPATLSLSPGERATLFCRASQSISSYVAWYQHKPGQAPRLLIYDTVSRATGVPARFSGAGSGTDFTLSISSLESGDFGVYYCQQRGMSLPWTFGQGTKVEIK