Results 251 to 260 of about 341,197 (295)
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The Cofactor Pyrroloquinoline Quinone
Annual Review of Nutrition, 1990Article de synthese sur un cofacteur: la pyrroloquinoleine quinone. Etude de ses proprietes; caracteristiques, formes moleculaires, stabilite. Identification et analyse quantitative des formes libres, derivees et liees par liaison covalente. Distribution chez les procaryotes, les eucaryotes, les aliments et les boissons.
J A, Duine +2 more
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1992
MCP serves to down-regulate the activation of complement on host tissue. It performs this function by serving as a cofactor for the factor I-mediated cleavage of C3b and C4b. MCP is most likely an intrinsic regulator, i.e., it primarily protects its home cell.
M K, Liszewski, J P, Atkinson
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MCP serves to down-regulate the activation of complement on host tissue. It performs this function by serving as a cofactor for the factor I-mediated cleavage of C3b and C4b. MCP is most likely an intrinsic regulator, i.e., it primarily protects its home cell.
M K, Liszewski, J P, Atkinson
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1978
It is known that many enzymes function only in conjunction with a coenzyme (cofactor) which is generally a compound of low molecular weight. Immobilization of these compounds has been the focus of much effort because of their potential as bioaffinity ligands and in the search for immobilized coenzymes retaining “biological activity”, which are readily ...
K. Mosbach, P.-O. Larsson
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It is known that many enzymes function only in conjunction with a coenzyme (cofactor) which is generally a compound of low molecular weight. Immobilization of these compounds has been the focus of much effort because of their potential as bioaffinity ligands and in the search for immobilized coenzymes retaining “biological activity”, which are readily ...
K. Mosbach, P.-O. Larsson
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2012
The exosome is a large protein complex mediating 3'-5' RNA degradation in both nucleus and cytosol of all eukaryotic cells. It consists of nine conserved subunits forming the core complex, which associates with ribonucleolytic enzymes and other cofactors such as RNA-binding proteins or RNA helicases.
Heike, Lange, Dominique, Gagliardi
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The exosome is a large protein complex mediating 3'-5' RNA degradation in both nucleus and cytosol of all eukaryotic cells. It consists of nine conserved subunits forming the core complex, which associates with ribonucleolytic enzymes and other cofactors such as RNA-binding proteins or RNA helicases.
Heike, Lange, Dominique, Gagliardi
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Hierarchies of cofactor systems
Journal of Physics A: Mathematical and General, 2002Summary: We assign to any cofactor system a whole hierarchy of such systems. A sufficient condition for their complete integrability is given. The hierarchies admit construction of nontrivial integrable systems from trivial ones.
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1997
Heparin cofactor II (HCII) is a serpin that inhibits thrombin rapidly in the presence of dermatan sulfate or heparin. Both of these glycosaminoglycans bind to HCII and increase the rate of inhibition of thrombin >1000-fold. This review will focus on the biochemistry of HCII and the mechanism by which glycosaminoglycans stimulate its activity.
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Heparin cofactor II (HCII) is a serpin that inhibits thrombin rapidly in the presence of dermatan sulfate or heparin. Both of these glycosaminoglycans bind to HCII and increase the rate of inhibition of thrombin >1000-fold. This review will focus on the biochemistry of HCII and the mechanism by which glycosaminoglycans stimulate its activity.
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Biosynthesis of the methanogenic cofactors
2001Our current knowledge of the pathways and genes involved in the biosynthesis of the methanogenic coenzymes methanopterin, coenzyme B, methanofuran, coenzyme F420, and coenzyme M is presented. Proposed reaction mechanisms for several of the novel reactions involved in the pathways are presented.
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“Cofactors” for Natural Products
ChemMedChemAbstractCofactors are non‐protein entities necessary for proteins to operate. They provide “functional groups” beyond those of the 20 canonical amino acids and enable proteins to carry out more diverse functions. Such a viewpoint is rarely mentioned, if at all, when it comes to natural products and is the theme of this Concept.
Shao‐Lun Chiou +2 more
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In Vitro Biosynthesis of the [Fe]‐Hydrogenase Cofactor Verifies the Proposed Biosynthetic Precursors
Angewandte Chemie - International Edition, 2022Hui-Jie Pan, Jörg Kahnt, Xile Hu
exaly