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Indole-3-carbaldehyde (I3A), also known as indole-3-aldehyde and 3-formylindole, is a metabolite of dietary L-tryptophan which is synthesized by human gastrointestinal bacteria, particularly species of the Lactobacillus genus.
In addition to the light- or H 2 O 2-induced formation of FICZ, a number of other enzymatic pathways have been identified to convert Trp to FICZ via the precursor I3A. [2] [3] Oxidative deamination of Trp by aromatic amino acid aminotransferases (ArAT) or L-amino oxidases (LAAO), one of which is the IL4-inducible enzyme IL4I1, converts Trp to indole-3-pyruvate, which after decarboxylation ...
Indole is an organic compound with the formula C 6 H 4 CCNH 3. Indole is classified as an aromatic heterocycle. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered pyrrole ring. Indoles are derivatives of indole where one or more of the hydrogen atoms have been replaced by substituent groups.
The decarboxylation of indole-3-acetate is chemically difficult since it leaves an unstable carbanion because of the direct elimination of CO 2. This chemical reaction is promoted by 1-electron oxidation of indole-3-acetate through a proton-coupled electron transfer (PCET), which requires the transfer of the indolic-NH proton to a suitably ...
β-Carboline (9H-pyrido[3,4-b]indole) represents the basic chemical structure for more than one hundred alkaloids and synthetic compounds. The effects of these substances depend on their respective substituent. Natural β-carbolines primarily influence brain functions but can also exhibit antioxidant [1] effects.
It is also available in dietary supplements. [3] Indole-3-carbinol is the subject of on-going biomedical research into its possible anticarcinogenic, [4] antioxidant, and anti-atherogenic effects. [5] Research on indole-3-carbinol has been conducted primarily using laboratory animals and cultured cells. [6]
Indole-3-carboxylate decarboxylase (EC 4.1.1.92) is an enzyme with systematic name indole-3-carboxylate carboxy-lyase. [1] This enzyme catalyses the following chemical reaction. indole-3-carboxylate indole + CO 2. This enzyme is activated by Zn 2+, Mn 2+ or Mg 2+.
The 3 substrates of this enzyme are (indol-3-yl)acetaldehyde, H 2 O, and O 2, whereas its two products are (indol-3-yl)acetate and H 2 O 2. This enzyme belongs to the family of oxidoreductases , specifically those acting on the aldehyde or oxo group of donor with oxygen as acceptor.