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Deamination is the removal of an amino group from a molecule. [1] Enzymes that catalyse this reaction are called deaminases.. In the human body, deamination takes place primarily in the liver; however, it can also occur in the kidney.
Other names in common use include acylamidase, acylase, amidohydrolase, deaminase, fatty acylamidase, and N-acetylaminohydrolase. This enzyme participates in 6 metabolic pathways : urea cycle and metabolism of amino groups , phenylalanine metabolism , tryptophan metabolism , cyanoamino acid metabolism , benzoate degradation via coa ligation ...
The phenylalanine deaminase test is used to tell whether an organism can produce the enzyme deaminase. Deaminase is the enzyme that can deaminate the amino acid phenylalanine into the products ammonia and phenylpyruvic acid. The test is performed by adding phenylalanine to the growth medium and allowing growth to occur.
Threonine ammonia-lyase (EC 4.3.1.19, systematic name L-threonine ammonia-lyase (2-oxobutanoate-forming), also commonly referred to as threonine deaminase or threonine dehydratase, is an enzyme responsible for catalyzing the conversion of L-threonine into α-ketobutyrate and ammonia: L-threonine = 2-oxobutanoate + NH 3 (overall reaction)
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Oxidative deamination is stereospecific, meaning it contains different stereoisomers as reactants and products; this process is either catalyzed by L or D- amino acid oxidase and L-amino acid oxidase is present only in the liver and kidney. [2]
The most well-known health issue involving porphobilinogen deaminase is acute intermittent porphyria, an autosomal dominant genetic disorder where insufficient hydroxymethylbilane is produced, leading to a build-up of porphobilinogen in the cytoplasm. This is caused by a gene mutation that, in 90% of cases, causes decreased amounts of enzyme.
In enzymology, an ATP deaminase (EC 3.5.4.18) is an enzyme that catalyzes the chemical reaction ATP + H 2 O ⇌ {\displaystyle \rightleftharpoons } ITP + NH 3 Thus, the two substrates of this enzyme are ATP and H 2 O , whereas its two products are ITP and NH 3 .