>6a6f_A mol:protein length:138 Iron-sulfur cluster assembly scaffold protein NifUGSHMIYSEFIMDYSKLKKFHGKIENAHKVEEGKNLSCGDEVTLYFLFDGDKIVDVKFEGHGCAISQASTNVMIEQIIGKTKQEALEMMKNAENMMLGKEFDENVLGPIINFYDVKNYPMRVKCFLLPWKTLEIALKNE