cysteine

cysteine

See also: Cysteine and cystéine

English

Etymology

An alteration of cystine.

Noun

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

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

• E910 when used as a food additive
• E920 when used as an improving agent
• Cys when viewed as a monomer in proteins

Translations

nonessential amino acid

Catalan: cisteïna f Chinese: Mandarin: 半胱氨酸 (zh) (bànguāng'ānsuān) Czech: cystein m Danish: cystein Esperanto: cisteino Finnish: kysteiini French: cystéine (fr) f Galician: cisteína f German: Cystein (de) n Greek: κυστεΐνη (el) f (kysteḯni)

Hungarian: cisztein Italian: cisteina (it) Japanese: システイン (shisutein) Persian: سیستئین‎ (siste'in) Polish: cysteina f Portuguese: cisteína Romanian: cisteină f Russian: цистеи́н (ru) m (cisteín) Spanish: cisteína f Swedish: cystein (sv)