Regulation of the hexaheme nitrite/nitric oxide reductase of Desulfovibrio desulfuricans, Wolinella succinogenes and Escherichia coli. A mass spectrometric study.
Dissimilatory nitrite reduction, carried out by hexaheme proteins, gives ammonia as the final product. Representatives of this enzyme group from 3 bacterial species can also reduce NO to either ammonia or N2O. The redox regulation of the nitrite/nitric oxide activities is discussed in the context of the denitrifying pathway.
Costa
C
C
Centro de Tecnologia Química e Biológica (CTQB), Oeiras, Portugal.
Macedo
A
A
Moura
I
I
Moura
J J
JJ
Le Gall
J
J
Berlier
Y
Y
Liu
M Y
MY
Payne
W J
WJ
D001205:Ascorbic Acid / Q000378:metabolism; D001438:Bacteroidaceae / Q000201:enzymology*; D003901:Desulfovibrio / Q000201:enzymology*; D004227:Dithionite / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology*; D007700:Kinetics; D013058:Mass Spectrometry; D009249:NADP / Q000378:metabolism; D009569:Nitric Oxide / Q000378:metabolism; D009572:Nitrite Reductases / Q000378:metabolism*; D010088:Oxidoreductases / Q000378:metabolism*
D004227:Dithionite; D009569:Nitric Oxide; D009249:NADP; D010088:Oxidoreductases; D009572:Nitrite Reductases; C034747:nitric-oxide reductase; D001205:Ascorbic Acid