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Halflife of nitrogenase

Range	~45sec Fe-protein: ~10 min MoFe-protein
Organism	prokaryote
Reference	Ilana Berman-Frank, Pernilla Lundgren, Paul Falkowski. Nitrogen fixation and photosynthetic oxygen evolution in cyanobacteria. Res Microbiol. 2003 Apr154(3):157-64. p. 158 left columnPubMed ID12706503
Primary Source	J.R. Gallon, Reconciling the incompatible: N2 fixation and oxygen, New Phytol. 122 (1992) 571–609.
Comments	Whereas both the Fe4S4 and P clusters are inactivated by O2, the Fe4S4 cluster is much more susceptible and irreversibly damaged in vitro [J.R. Postgate, Nitrogen Fixation, 3 Edition, Cambridge University Press, Cambridge, 1998, p. 112]. This is reflected by the difference in typical half-lives of the Fe-protein and MoFe-protein about 45 s and 10 min, respectively [primary source].
Entered by	Uri M
ID	105550