scholarly journals Enzymatic Properties of the Membrane-bound NADH Oxidase System in the Aerobic Respiratory Chain of Bacillus cereus

BMB Reports ◽  
2004 ◽  
Vol 37 (6) ◽  
pp. 753-756 ◽  
Author(s):  
Man-Suk Kim ◽  
Young-Jae Kim
Keyword(s):  
Bacillus Cereus ◽  
Respiratory Chain ◽  
Nadh Oxidase ◽  
Enzymatic Properties ◽  
Oxidase System ◽  
Membrane Bound

The intracellular Na+ and K+ composition of the moderately halophilic bacterium, Paracoccus halodenitrificans

1980 ◽  
Vol 26 (4) ◽  
pp. 496-502 ◽  
Author(s):  
M. Sadler ◽  
M. McAninch ◽  
R. Alico ◽  
L. I. Hochstein
Keyword(s):  
Stationary Phase ◽  
Growth Medium ◽  
Nadh Oxidase ◽  
Halophilic Bacterium ◽  
Oxidase System ◽  
Final Value ◽  
Moderately Halophilic Bacterium ◽  
Nacl Concentration ◽  
Atp Pool ◽  
Membrane Bound

The intracellular concentrations of Na+ and K+ in exponentially growing Paracoccus halodenitrificans were independent of the NaCl concentration of the growth medium. The observed values were approximately 100 and 300 mM for Na+ and K+, respectively. In stationary phase cells, the ultimate values for Na+ depended on the NaCl concentration of the growth medium. With cells grown in the presence of 1 M NaCl, the value was about 500 mM; for cells grown in the presence of 3 M NaCl, the value was about 1.1 M. The K+ concentration in stationary phase cells was unaffected by the NaCl concentration in the growth medium. The final value was about 100 mM. Associated with these changes were changes in the ATP pool and decreases in the activities of the NADH oxidase system and the membrane-bound ATPase. It is proposed that the decrease in the activities of these enzymes may account for the ion flows observed in stationary phase cells.

NADH oxidase system of Agrobacterium tumefaciens

1966 ◽  
Vol 113 (3) ◽  
pp. 548-553 ◽  
Author(s):  
C.K.Ramakrishna Kurup ◽  
C.S. Vaidyanathan ◽  
T. Ramasarma
Keyword(s):  
Agrobacterium Tumefaciens ◽  
Nadh Oxidase ◽  
Oxidase System

Topics in Chronic Granulomatous Disease

PEDIATRICS ◽  
1991 ◽  
Vol 88 (1) ◽  
pp. 183-185
Author(s):  
SHIGENOBU UMEKI
Keyword(s):  
Nadph Oxidase ◽  
Chronic Granulomatous Disease ◽  
Host Defense ◽  
Superoxide Anion ◽  
Fungal Infections ◽  
Regulatory Elements ◽  
Granulomatous Disease ◽  
Phagocytic Cells ◽  
Oxidase System ◽  
Membrane Bound

To the Editor.— Such phagocytic cells as neutrophils and macrophages are crucial elements in the host defense against bacterial [See table in the PDF file] and fungal infections. Microbicidal activity depends to a large extent on NADPH oxidase system, which can be activated by stimuli (bacteria, fungi) and which generates the superoxide anion and other highly reactive forms of reduced oxygen.1,2 The neutrophil NADPH oxidase system is composed functionally of membrane-bound catalytic components (which consist of at least two constituents, the low potential cytochrome b5583-5 and flavoprotein5) and soluble cytosolic components6,7 which participate as either catalytic or regulatory elements.

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