Catecholamine biosynthesis and tetrahydrobiopterin cofactor.
نویسندگان
چکیده
منابع مشابه
Tetrahydrobiopterin biosynthesis, regeneration and functions.
Tetrahydrobiopterin (BH(4)) cofactor is essential for various processes, and is present in probably every cell or tissue of higher organisms. BH(4) is required for various enzyme activities, and for less defined functions at the cellular level. The pathway for the de novo biosynthesis of BH(4) from GTP involves GTP cyclohydrolase I, 6-pyruvoyl-tetrahydropterin synthase and sepiapterin reductase...
متن کاملTetrahydrobiopterin biosynthesis, utilization and pharmacological effects.
Tetrahydrobiopterin (H4-biopterin) is an essential cofactor of a set of enzymes that are of central metabolic importance, i.e. the hydroxylases of the three aromatic amino acids phenylalanine, tyrosine, and tryptophan, of ether lipid oxidase, and of the three nitric oxide synthase (NOS) isoenzymes. As a consequence, H4-biopterin plays a key role in a vast number of biological processes and path...
متن کاملMolybdenum Cofactor Biosynthesis in Humans
Molybdenum cofactor deficiency is a devastating disease with affected patients displaying the symptoms of a combined deficiency of sulfite oxidase and xanthine dehydrogenase. Because of the extreme lability of the isolated, functional molybdenum cofactor, direct cofactor replacement therapy is not feasible, and a search for stable biosynthetic intermediates was undertaken. From studies of cocul...
متن کاملAntimetabolite poisoning of cofactor biosynthesis.
The lack of new antibiotics coupled with the increased prevalence of multidrugresistant bacterial pathogens is cause for great concern (Wright, 2012). The genomics revolution predicted a new era in antibiotics discovery with the delivery of an abundance of conserved and essential targets (Payne et al., 2007). However, target-based approaches for antibacterial discovery have proven quite challen...
متن کاملRegulation of tetrahydrobiopterin biosynthesis by shear stress.
An essential cofactor for the endothelial NO synthase is tetrahydrobiopterin (H4B). In the present study, we show that in human endothelial cells, laminar shear stress dramatically increases H4B levels and enzymatic activity of GTP cyclohydrolase (GTPCH)-1, the first step of H4B biosynthesis. In contrast, protein levels of GTPCH-1 were not affected by shear. Shear did not change protein express...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Pharmacology
سال: 1985
ISSN: 0021-5198
DOI: 10.1016/s0021-5198(19)63284-1