CYSTINE

Cystine

Cystine is the amino acid formed by the oxidation of two cysteine molecules that covalently link via a disulfide bond. This organosulfur compound has the formula 2. It is a white solid that is slightly soluble in water. Human hair and skin contain approximately 10-14% cystine by mass. It was discovered in 1810 by William Hyde Wollaston but was not recognized as being derived of proteins until it was isolated from the horn of a cow in 1899.

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cystine

Noun

  1. a nonessential amino acid formed by the oxidation of cysteine; it contains two cycteine residues linked by a disulfide bond


The above text is a snippet from Wiktionary: cystine
and as such is available under the Creative Commons Attribution/Share-Alike License.

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