cysteine

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See also: cystéine

English[edit]

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Etymology[edit]

An alteration of cystine.

Noun[edit]

cysteine (countable and uncountable, plural cysteines)

  1. (biochemistry) A sulphur-containing nonessential amino acid C3H7NO2S found in most animal proteins; it readily oxidizes to cystine.

Usage notes[edit]

When used as the name of a substance, this noun is uncountable, but when used as the name of individual molecules, it is countable.

Synonyms[edit]

Translations[edit]