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2-Aminopropionic acid; α-aminopropionic acid; the l-stereoisomer is one of the amino acid s widely occurring in proteins.
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al·a·nine 'al-ə-.nēn n a simple nonessential crystalline amino acid C3H7NO2 formed esp. by the hydrolysis of proteins abbr. Ala
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n.
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al·a·nine (Ala) (A) (alґə-nēn) 1. a nonessential amino acid, 2-aminopropanoic acid, occurring in proteins; high levels also occur free in plasma. It is synthesized from pyruvate. See also table at amino acid. 2. [USP] a preparation of alanine used as a dietary supplement.Medical dictionary. 2011.