>8fsj_C mol:protein length:298 AR4A heavy chainMYRMQLLSCIALSLALVTNSEVQLLEQSGPEVKKPGDSLRISCKMSGDSLVTTWIGWVRQKPGQGLEWMGIINPGDSSTNIYPGDSATRYGPSFQGQVTISIDKSTSTAYLQWNNVKASDTGIYYCARHVPVPISGTFLWREREMHDFGYFDDWGQGTLVIVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCAGWSHPQFEKGGGSGGGSGGSSAWSHPQFEK