scholarly journals Genome Annotation Provides Insight into Carbon Monoxide and Hydrogen Metabolism in Rubrivivax gelatinosus

PLoS ONE ◽  
2014 ◽  
Vol 9 (12) ◽  
pp. e114551 ◽  
Author(s):  
Karen Wawrousek ◽  
Scott Noble ◽  
Jonas Korlach ◽  
Jin Chen ◽  
Carrie Eckert ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Genome Annotation ◽  
Hydrogen Metabolism ◽  
Rubrivivax Gelatinosus ◽  
Insight Into

An atomic-level insight into the basic mechanism responsible for the enhancement of the catalytic oxidation of carbon monoxide on a Cu/CeO2 surface

2017 ◽  
Vol 19 (5) ◽  
pp. 3498-3505 ◽  
Author(s):  
Kenichi Koizumi ◽  
Katsuyuki Nobusada ◽  
Mauro Boero
Keyword(s):  
Carbon Monoxide ◽  
Reaction Mechanism ◽  
Catalytic Oxidation ◽  
Morphological Changes ◽  
Basic Mechanism ◽  
Atomic Level ◽  
Insight Into ◽  
Oxidation Of Carbon Monoxide

Reaction mechanism of CO molecules onto a Cu/CeO2 surface and morphological changes.

Ductus arteriosus: involvement of a sarcolemmal cytochrome P-450 in O2 constriction?

1989 ◽  
Vol 67 (11) ◽  
pp. 1448-1450 ◽  
Author(s):  
Flavio Coceani ◽  
Julie Wright ◽  
Carole Breen
Keyword(s):  
Carbon Monoxide ◽  
Ductus Arteriosus ◽  
Signal Transducer ◽  
Mixture Ratio ◽  
Skinned Muscle ◽  
Sequence Of Events ◽  
Membrane Bound ◽  
Cytochrome P 450 ◽  
Constrictor Response ◽  
Insight Into

Our previous studies implicate a cytochrome P-450-based mechanism in the constrictor response of the ductus arteriosus to oxygen. The present experiments were conducted on saponin-skinned strips of ductal muscle from mature fetal lambs to determine the location, sarcolemmal versus intracellular, of this cytochrome and to obtain a better insight into the sequence of events underlying the action of oxygen. Skinned preparations contracted to free Ca2+ over the range between 0.1 and 5–10 μM (pCa 7 to 5). In contrast, oxygen (Po2, 608–690 Torr; 1 Torr = 133.3 Pa) had no significant effect, both in the absence and presence of 10 μM calcium. Carbon monoxide, tested as pure CO or a CO–O2 mixture (ratio 0.28), did not relax preparations maximally contracted with calcium. These findings indicate that oxygen exerts its effect on the plasma membrane of ductus muscle cells and that a membrane-bound cytochrome P-450 mechanism likely functions as the signal transducer for oxygen in the formation of a constrictor agent.Key words: ductus arteriosus closure, chemically skinned muscle, second messenger.

scholarly journals CO-Sensing Mechanisms

2004 ◽  
Vol 68 (3) ◽  
pp. 453-473 ◽  
Author(s):  
Gary P. Roberts ◽  
Hwan Youn ◽  
Robert L. Kerby
Keyword(s):  
Carbon Monoxide ◽  
Rhodospirillum Rubrum ◽  
Biological Role ◽  
Current Evidence ◽  
Physiological Effects ◽  
Co Sensor ◽  
Insight Into ◽  
Molecular Description

SUMMARY Carbon monoxide (CO) has long been known to have dramatic physiological effects on organisms ranging from bacteria to humans, but recently there have a number of suggestions that organisms might have specific sensors for CO. This article reviews the current evidence for a variety of proteins with demonstrated or potential CO-sensing ability. Particular emphasis is placed on the molecular description of CooA, a heme-containing CO sensor from Rhodospirillum rubrum, since its biological role as a CO sensor is clear and we have substantial insight into the basis of its sensing ability.

scholarly journals Association of hydrogen metabolism with unitrophic or mixotrophic growth of Methanosarcina barkeri on carbon monoxide.

1984 ◽  
Vol 158 (1) ◽  
pp. 373-375 ◽  
Author(s):  
J M O'Brien ◽  
R H Wolkin ◽  
T T Moench ◽  
J B Morgan ◽  
J G Zeikus
Keyword(s):  
Carbon Monoxide ◽  
Methanosarcina Barkeri ◽  
Hydrogen Metabolism ◽  
Mixotrophic Growth

scholarly journals Structural insight into metallocofactor maturation in carbon monoxide dehydrogenase

2019 ◽  
Vol 294 (35) ◽  
pp. 13017-13026 ◽  
Author(s):  
Elizabeth C. Wittenborn ◽  
Steven E. Cohen ◽  
Mériem Merrouch ◽  
Christophe Léger ◽  
Vincent Fourmond ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Carbon Monoxide Dehydrogenase ◽  
Structural Insight ◽  
Insight Into
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