One of the mysteries of the English language finally explained.
An amino acid which is a constituent of most proteins.
Alternative name: 2-aminopropanoic acid; chemical formula: CH₃CH(NH₂)COOH. β-alanine, an isomer of this, is 3-aminopropanoic acid, (NH₂)CH₂CH₂COOH
- ‘Other examples of amino acids are alanine, leucine, cysteine, arginine, and tryptophan.’
- ‘All of these silks are composed of protein chains in which the amino acids glycine, alanine, and serine dominate.’
- ‘The neutral amino acids alanine, threonine and valine accumulated in the vesicles by factors of 30-50.’
- ‘Also, a combination of the amino acids glycine, alanine and glutamic acid can relieve symptoms of prostatitis.’
- ‘They look like alanine molecules, or amino acids, or like chloroform.’
Mid 19th century: coined in German as Alanin, from aldehyde + -an (for ease of pronunciation) + -ine.
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