>3c6s_F mol:protein length:217 Fab F22-4 heavy chainEVKVEESGGGLVQPGGSMKISCVVSGLTFSNYWMSWVRQSPEKGLEWVAEIRLKSDNYATYYAESVKGKFTISRDDSKSRLYLQMNNLRTEDTGIYYCFLPMDYWGQGTSVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRDC