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An amino acid is an organic compound characterized by having a carboxyl group, amino group, and side-chain attached to a central carbon atom. Amino acids are used as precursors for other molecules in the body. Linking amino acids together forms polypeptides, which may become proteins.
Examples include red meat, chicken, fish, seafood, eggs, milk, cheese, yogurt, quinoa, chia seeds, and tofu. These foods are comprehensive sources of essential amino acids. Conversely, some foods are incomplete proteins, lacking one or more of the nine essential amino acids.
Table of 20 amino acids derived from proteins with the amino acid's name, common abbreviation and symbol, linear structure and skeletal structure.
Amino acid, any of a group of organic molecules that consist of a basic amino group, an acidic carboxyl group, and a unique organic side chain. The term amino acid is short for α-amino [alpha-amino] carboxylic acid. Examples of amino acids include glycine and threonine.
The best sources of essential amino acids are animal proteins such as meat, eggs, and poultry. However, some plant foods, such as the soy products edamame and tofu, contain all nine essential...
Amino acids are formally named by the IUPAC - IUBMB Joint Commission on Biochemical Nomenclature in terms of the fictitious "neutral" structure shown in the illustration. For example, the systematic name of alanine is 2-aminopropanoic acid, based on the formula CH3−CH (NH2)−COOH.
Definition. Amino acids are the building blocks of polypeptides and proteins and play important roles in metabolic pathway, gene expression, and cell signal transduction regulation. A single organic amino acid molecule contains two functional groups – amine and carboxyl – and a unique side chain.