出典:Wiktionary
出典:『Wiktionary』 (2025/12/24 12:16 UTC 版)
From aldehyde + -anine, in reference to aldehyde, with the infix -an- for ease of pronunciation, when the German chemist Adolph Strecker first synthesized alanine in 1850 by mixing acetaldehyde (then just known as aldehyde) with ammonia, hydrogen cyanide, and hydrochloric acid.
alanine (countable and uncountable, plural alanines)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/17 07:39 UTC 版)
Alanine (abbreviated as Ala or A) is an α-amino acid with the chemical formula CH3CH(NH2)COOH. The L-isomer is one of the 22 proteinogenic amino acids, i.e., the building blocks of proteins. Its codons are GCU, GCC, GCA, and GCG. It is classified as a nonpolar amino acid. L-Alanine is second only to leucine in rate of occurrence, accounting for 7.8% of the primary structure in a sample of 1,150 proteins. D-Alanine occurs in bacterial cell walls and in some peptide antibiotics.
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