Nitric oxide synthesis by bacterial cytochrome cd1 nitrite reductases

Nitric Oxide ◽  
2012 ◽  
Vol 27 ◽  
pp. S10
Author(s):  
Francesca Cutruzzolà
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Synthesis ◽  
Nitrite Reductases ◽  
Cytochrome Cd1

New insights into the activity of Pseudomonas aeruginosa cd1 nitrite reductase

2008 ◽  
Vol 36 (6) ◽  
pp. 1155-1159 ◽  
Author(s):  
Serena Rinaldo ◽  
Alessandro Arcovito ◽  
Giorgio Giardina ◽  
Nicoletta Castiglione ◽  
Maurizio Brunori ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Pseudomonas Aeruginosa ◽  
Nitrite Reductase ◽  
Nitrite Reduction ◽  
Nitrite Reductases ◽  
Cytochrome Cd1 ◽  
Haem Iron ◽  
Shed Light ◽  
Denitrification Process

The cytochrome cd1 nitrite reductases are enzymes that catalyse the reduction of nitrite to nitric oxide (NO) in the bacterial energy conversion denitrification process. These enzymes contain two different redox centres: one covalently bound c-haem, which is reduced by external donors, and one peculiar d1-haem, where catalysis occurs. In the present paper, we summarize the current understanding of the reaction of nitrite reduction in the light of the most recent results on the enzyme from Pseudomonas aeruginosa and discuss the differences between enzymes from different organisms. We have evidence that release of NO from the ferrous d1-haem occurs rapidly enough to be fully compatible with the turnover, in contrast with previous hypotheses, and that the substrate nitrite is able to displace NO from the d1-haem iron. These results shed light on the mechanistic details of the activity of cd1 nitrite reductases and on the biological role of the d1-haem, whose presence in this class of enzymes has to date been unexplained.

Age-Dependence in Alterations in Nitric Oxide Synthesis in Cardiovascular System during Adaptation to Physical Training

2010 ◽  
Vol 1 (4) ◽  
pp. 345-356 ◽  
Author(s):  
O. V. Bazilyuk ◽  
Anatolii V. Kotsuruba ◽  
Lyubov. G. Stepanenko ◽  
Sergey A. Talanov ◽  
Yu. P. Korchak ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Cardiovascular System ◽  
Physical Training ◽  
Nitric Oxide Synthesis ◽  
Age Dependence

Chronic Inhibition of Endothelium-Derived Nitric Oxide Synthesis Causes Coronary Microvascular Structural Changes and Hyperreactivity to Serotonin in Pigs

Circulation ◽  
1995 ◽  
Vol 92 (9) ◽  
pp. 2636-2644 ◽  
Author(s):  
Akira Ito ◽  
Kensuke Egashira ◽  
Toshiaki Kadokami ◽  
Yoshihiro Fukumoto ◽  
Tsuneo Takayanagi ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Structural Changes ◽  
Nitric Oxide Synthesis

Effects of Long-term Nitric Oxide Synthesis Inhibition on Plasma Volume Expansion and Fetal Growth in the Pregnant Rat

Hypertension ◽  
1995 ◽  
Vol 26 (6) ◽  
pp. 1019-1023 ◽  
Author(s):  
Sofía P. Salas ◽  
Fernando Altermatt ◽  
Mauricio Campos ◽  
Andrea Giacaman ◽  
Pedro Rosso
Keyword(s):  
Nitric Oxide ◽  
Fetal Growth ◽  
Plasma Volume ◽  
Volume Expansion ◽  
Nitric Oxide Synthesis ◽  
Plasma Volume Expansion ◽  
Pregnant Rat ◽  
Synthesis Inhibition

Arginine Vasopressin Increases Nitric Oxide Synthesis in Cytokine-Stimulated Rat Cardiac Myocytes

Hypertension ◽  
1997 ◽  
Vol 30 (5) ◽  
pp. 1112-1120 ◽  
Author(s):  
Keiji Yamamoto ◽  
Uichi Ikeda ◽  
Koji Okada ◽  
Toshikazu Saito ◽  
Yasuhiro Kawahara ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Cardiac Myocytes ◽  
Arginine Vasopressin ◽  
Nitric Oxide Synthesis ◽  
Rat Cardiac Myocytes

Parathyroid Hormone–Related Protein Upregulates Interleukin-1β–Induced Nitric Oxide Synthesis

Hypertension ◽  
1997 ◽  
Vol 30 (4) ◽  
pp. 922-927 ◽  
Author(s):  
Bingbing Jiang ◽  
Shigeto Morimoto ◽  
Jin Yang ◽  
Keisuke Fukuo ◽  
Atsushi Hirotani ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Parathyroid Hormone ◽  
Interleukin 1Β ◽  
Nitric Oxide Synthesis ◽  
Related Protein ◽  
Parathyroid Hormone Related Protein

The Effect of a Nitric Oxide Inhibitor (L-Name) on Peritoneal Transport during Dialysis in Rats

1998 ◽  
Vol 18 (2) ◽  
pp. 188-192 ◽  
Author(s):  
Andrzej Breborowicz ◽  
Katarzyna Wieczorowska Tobis ◽  
Katarzyna Korybalska ◽  
Alicja Polubinska ◽  
Maciej Radkowski ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Peritoneal Dialysis ◽  
Significant Decline ◽  
Nitric Oxide Synthesis ◽  
Dialysis Fluid ◽  
Large Molecules ◽  
Acute Peritonitis ◽  
Important Mediator ◽  
Peritoneal Transport ◽  
Nitric Oxide Inhibitor

Objective To assess the effect of an inhibitor of nitric oxide synthesis [NG-nitro-L-arginine methyl ester (L-NAME)] on peritoneal transport during peritoneal dialysis (PD) and peritonitis in rats. Methods The authors studied peritoneal transport of small and large solutes, and net ultrafiltration (UF) in rats during PD with Dianeal 3.86 (Baxter, McGaw Park, IL, U.S.A.). They evaluated the effect of L-NAME used as an additive to dialysis fluid in concentrations 0.5 -5 mg/m L on peritoneal transport of small and large molecules and on transperitoneal UF. In addition, they studied the effect of L-NAME (5 mg/mL) during acute peritonitis induced by lipopolysaccharides (5 μg/mL) given intraperitoneally. Results The addition of L-NAME to dialysis fluid increased the selectivity of the peritoneum and net UF during dialysis. Lipopolysaccharides used as an additive to the dialysis fluid, together with L-NAME, did not induce changes in transperitoneal transport of small and large solutes and did not cause a significant decline in net UF. L-NAME given intraperitoneally reduced both local and systemic production of nitric oxide, which might explain its effects on peritoneal transport. Conclusions Nitric oxide is an important mediator of changes in peritoneal transport and its effect is especially significant during peritonitis.

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