View source for Cystine

Cystine is an [[Amino acid|amino acid which]] is important in determining the&nbsp;[[Tertiary structure|tertiary]]&nbsp;structure of proteins. This is because of its ability to form [[Disulphide bridges|disulphide bridges]] with other cystine residues within the chain. The bonds formed are [[Covalent bond|covalent]] and therefore are very strong and rigid.

Cystine is coded for by two [[Codon|codons]]: TGT and TGC