it is further proposed that the co-induced signals arise from states of the mofe protein in which co inhibits electron flow to the n2-reducing site so that the iron-sulfur cluster achieves steady-state net charges of -1 ( high co complex ) and -3 ( low co complex ) in analogy to the normal paramagnetic states of high-potential iron-sulfur proteins and ferredoxins , respectively .
C0026404
mofe
C0015858
ferredoxins