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Tryptophan hydroxylase (TPH) is an enzyme (EC 1.14.16.4) involved in the synthesis of the monoamine neurotransmitter serotonin. Tyrosine hydroxylase , phenylalanine hydroxylase , and tryptophan hydroxylase together constitute the family of biopterin-dependent aromatic amino acid hydroxylases .
Tryptophan hydroxylase (TPH; EC 1.14.16.4) is the rate-limiting enzyme in the synthesis of serotonin (5-hydroxytryptamine, or 5HT). 5HT is causally involved in numerous central nervous activities, and it has several functions in peripheral tissues, including the maintenance of vascular tone and gut motility.[supplied by OMIM] [7]
2-Hydroxyestradiol is a catechol estrogen and in this regard bears some structural resemblance to the catecholamines dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline). [6] In accordance, 2-hydroxyestradiol has been found to interact with catecholamine systems. [6]
2-Hydroxyestrone (2-OHE1), also known as estra-1,3,5(10)-trien-2,3-diol-17-one, is an endogenous, naturally occurring catechol estrogen and a major metabolite of estrone and estradiol. [ 1 ] [ 2 ] [ 3 ] It is formed irreversibly from estrone in the liver and to a lesser extent in other tissues via 2- hydroxylation mediated by cytochrome P450 ...
The pathway for the synthesis of serotonin from tryptophan. In animals and humans, serotonin is synthesized from the amino acid L-tryptophan by a short metabolic pathway consisting of two enzymes, tryptophan hydroxylase (TPH) and aromatic amino acid decarboxylase (DDC), and the coenzyme pyridoxal phosphate. The TPH-mediated reaction is the rate ...
Sex hormones like estrogen, progesterone, and testosterone impact fertility for men and women in different amounts. On social media, the so-called “fertility diet” is presented as a way for ...
The hydroxylation of estradiol is one of the major routes of metabolism of the estrogen steroid hormone estradiol. It is hydroxylated into the catechol estrogens 2-hydroxyestradiol and 4-hydroxyestradiol and into estriol (16α-hydroxyestradiol), reactions which are catalyzed by cytochrome P450 enzymes predominantly in the liver , but also in ...
21990 Ensembl ENSG00000129167 ENSMUSG00000040046 UniProt P17752 P17532 RefSeq (mRNA) NM_004179 NM_001136084 NM_001276372 NM_009414 RefSeq (protein) NP_004170 NP_001129556 NP_001263301 NP_033440 Location (UCSC) Chr 11: 18.02 – 18.05 Mb Chr 7: 46.29 – 46.32 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Tryptophan hydroxylase 1 (TPH1) is an isoenzyme of tryptophan hydroxylase ...