The nitrogenase complex consists of dinitrogenase and dinitrogenase redutase dinitrogenase(tetra dinitrogenase wpr FeMo protein dinitrogenase reductase(dimer) reductase(dimer or Fe pro t Fe-Mo cofactor 4Fe-4S ADP ADP 4Fe-4s 4Fe-4S (P-cluster) 4Fe-4S (P-cluster) ADP ADP (b) Fe-Mo cofactorThe nitrogenase complex consists of dinitrogenase and dinitrogenase redutase dinitrogenase (tetramer) or FeMo protein dinitrogenase reductase (dimer) or Fe protein dinitrogenase reductase (dimer) or Fe protein e - 4Fe-4S 4Fe-4S (P-cluster) Fe-Mo cofactor 4Fe-4S (P-cluster) 4Fe-4S ADP ADP ? Fe-Mo cofactor ADP ADP