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Pathway Description
beta-Alanine Metabolism
Homo sapiens
Metabolic Pathway
Created: 2013-08-01
Last Updated: 2023-10-29
Beta-alanine, 3-aminopropanoic acid, is a non-essential amino acid. Beta-Alanine is formed by the proteolytic degradation of beta-alanine containing dipeptides: carnosine, anserine, balenine, and pantothenic acid (vitamin B5). These dipeptides are consumed from protein-rich foods such as chicken, beef, pork, and fish. Beta-Alanine can also be formed in the liver from the breakdown of pyrimidine nucleotides into uracil and dihydrouracil and then metabolized into beta-alanine and beta-aminoisobutyrate. Beta-Alanine can also be formed via the action of aldehyde dehydrogenase on beta-aminoproionaldehyde which is generated from various aliphatic polyamines. Under normal conditions, beta-alanine is metabolized to aspartic acid through the action of glutamate decarboxylase. It addition, it can be converted to malonate semialdehyde and thereby participate in propanoate metabolism. Beta-Alanine is not a proteogenic amino acid. This amino acid is a common athletic supplementation due to its belief to improve performance by increased muscle carnosine levels.
References
beta-Alanine Metabolism References
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