Nitrogenase regulation

Yoch DC (1979) Manganese, an essential trace element for N2 fixation by Rhodospirilllum rubrum and Rhodopseudomonas capsulata role in nitrogenase regulation 7 BacterioZ 140 987-995. 

As well as donating electrons to the MoFe protein, the Fe protein has at least two and possibly three other functions (see Section IV,C) It is involved in the biosynthesis of the iron molybdenum cofactor, FeMoco it is required for insertion of the FeMoco into the MoFe protein polypeptides and it has been implicated in the regulation of the biosynthesis of the alternative nitrogenases. 

Y. P. Chen, D. C. Yoch (1987) Regulation of two nickel-requiring (inducible and constitutive) hydrogenases and their coupling to nitrogenase in Methylosinus trichosporium OB3b. J. Bacteriol., 169 4778-4783... 

Since conventional nitrogenase is uniformly very O2 sensitive across the spectrum of physiological types (Gallon, 1992), physical mixing in planktonic systems has been recognized as a potentially important factor in regulating N2 fixation, particularly for... 

Yoch, D., and Whiting, G. (1986). Evidence forNH4" switch-off regulation of nitrogenase activity by bacteria in salt marsh sediments and roots of the grass Spartina alternijlora. Appl. Environ. Microbiol. 51, 143-149. 

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