1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Tryptophan Hydroxylase

Tryptophan Hydroxylase (色氨酸羟化酶)

Tryptophan hydroxylase (TPH) is the rate-limiting enzyme in the biosynthesis of the biogenic monoamine serotonin (5-hydroxytryptamine, 5-HT). TPH belongs to the family of the aromatic amino acid hydroxylases, including phenylalanine hydroxylase (PAH) and tyrosine hydroxylase (TH), which all have a strict requirement for dioxygen, non-heme iron (II) and tetrahydrobiopterin (BH4).Tryptophan hydroxylase is activated by phosphorylating conditions (ATP-Mg2+) in a calcium-dependent, cyclic AMP-independent manner. Two existing TPH isoforms (TPH-1 and TPH-2) are responsible for the generation of two distinct serotonergic systems in vertebrates.

TPH1, predominantly expressed in the gastrointestinal tract and pineal gland, mediates 5-HT biosynthesis in non-neuronal tissues, while TPH2, mainly found in the raphe nuclei of the brain stem, is accountable for the production of 5-HT in the brain. TPH-1, the principal enzyme for peripheral serotonin biosynthesis, provides a novel target to design anabolic agents for osteoporosis. TPH2 is a phenotypic marker for serotonin neurons and is known to be extremely labile to oxidation. As a major modulator of 5-HT neurotransmission and the stress response, TPH2 is of both pathophysiological and pharmacological significance, and is emerging as a new therapeutic target for the treatment of stress disorders.

Tryptophan Hydroxylase 相关产品 (4):

目录号 产品名 作用方式 纯度
  • HY-B1368
    Fenclonine Inhibitor
    Fenclonine 是有效的色氨酸羟化酶 (Trp) 的不可逆抑制剂,色氨酸羟化酶是 5-羟色胺生物合成的限速酶。
  • HY-23460
    p-Ethynylphenylalanine Inhibitor 98.25%
    p-Ethynylphenylalanine (4-Ethynyl-L-phenylalanine) 是一种高效、选择性的,可逆、竞争性的色氨酸羟化酶 (TPH) 抑制剂,其 Ki 值为 32.6 μM。
  • HY-23460A
    p-Ethynylphenylalanine hydrochloride Inhibitor 99.42%
    p-Ethynylphenylalanine hydrochloride (4-Ethynyl-L-phenylalanine hydrochloride) 是一种高效、选择性的,可逆、竞争性的色氨酸羟化酶 (TPH) 抑制剂,其 Ki 值为 32.6 μM。
  • HY-101456
    PCPA methyl ester hydrochloride Inhibitor
    PCPA methyl ester hydrochloride (4-Chloro-DL-phenylalanine methyl ester hydrochloride) 是一种可逆的色氨酸羟化酶 (tryptophan hydroxylase) 抑制剂,是 5-羟色胺 (5-HT) 合成抑制剂。PCPA methyl ester hydrochloride 可穿过血脑屏障,并降低 5-HT 的中枢利用率。
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