Cystine

**Definition:** A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.

**Tree numbers:** - D01.248.497.158.874.390.369 - D01.875.350.850.150.369 - D02.886.030.230.369 - D02.886.520.150.087 - D12.125.095.369 - D12.125.119.369 - D12.125.166.230.369

**Synonyms:** - L-Cystine