hydrogenase


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Related to hydrogenase: nitrogenase

hydrogenase

 [hi´dro-jen-ās″]
an enzyme that catalyzes the reduction of various substances by combining them with molecular hydrogen.

hy·dro·gen·ase

(hī'drō-jen-ās, hī-droj'ĕ-nās),
1. Any enzyme that removes a hydride ion (or H:-) from NADH (or NADPH). Synonym(s): hydrogenlyase
2. The enzyme that catalyzes the reaction of 2H+ with ferricytochrome or ferredoxin to generate H2.

hydrogenase

(hī-drŏj′ə-nās′, -nāz′)
n.
An enzyme in certain microorganisms that catalyzes the hydrolysis or reduction of a substrate by molecular hydrogen.

hydrogenase

[hī′drōjənās′]
Etymology: Gk, hydor, water, genein, to produce, ase, suffix indicating an enzyme
an enzyme that catalyzes reduction of molecules by combining them with two atoms of hydrogen.

hydrogenase

(1) Hydrogen dehydrogenase, EC 1.12.1.2.
(2) Cytochrome-c3 hydrogenase, EC 1.12.2.1.
(3) EC 1.18.99.1 (transferred to ferredoxin hydrogenase, EC 1.12.7.2).
(4) Any enzyme that removes H+ from NADH or adds H+ to ferricytochrome or ferredoxin.

hy·dro·gen·ase

(hī-droj'ĕn-ās)
Any enzyme that removes a hydride ion (or H:-) from NADH (or NADPH) or adds hydrogen to ferricytochrome or to ferredoxin.

hydrogenase

an ENZYME that can use molecular hydrogen to reduce various substances.

hydrogenase

an enzyme that catalyzes the reduction of various substances by combining them with molecular hydrogen.
References in periodicals archive ?
It was shown that two different hydrogenase enzymes were involved.
in environmental samples analyzed by denaturing gradient gel electrophoresis of [NiFe] hydrogenase gene fragments.
In such a case, he orders tests of liver function, iron and lactic hydrogenase levels, and endocrine function.
Yet not every microbe with a hydrogenase lives completely cut off from the atmosphere.
Understanding how oxygen reaches the active site will provide insight into how hydrogenase's oxygen tolerance can be increased through protein engineering, and, in turn, make hydrogenase an economical source of hydrogen fuel," said UIUC professor Klaus Schulten.
In this environment, the plant induces the enzyme hydrogenase.
These microbes produce an enzyme known as hydrogenase, which functions as a pair of chemical scissors that can sever hydrogen from complex biomass molecules.
Effects of anaerobic regulatory mutations and catabolite repression on regulation of hydrogen metabolism and hydrogenase isoenzyme composition in Salmonella tyhimurium.
Effect of HCH, carbaryl, benomyl and atrazine on the hydrogenase activity in a flooded soil.
Symbiotic effectiveness of indigenous soybean Bradyrhizobia as related to serological, morphological, rhizobitoxine and hydrogenase phenotypes.
However, a specific enzyme, hydrogenase, may lead to non-negligible H2 formation even within natural systems.

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