Cystine: Difference between revisions
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{{Image|Cysteine vs Cystine10.jpg|right|350px|Comparison of cysteine and cystine structures, which can be interconverted by oxidation or reduction.}} | |||
'''Cystine''' refers to the oxidative linkage between two molecules of [[cysteine]], one of the common [[amino acid]]s, in the form of a [[disulfide bond]]. It may also refer to such a bond that occurs between two cysteine amino acids in a [[protein]]. Typically, intracellular proteins have few, if any, such disulfide bonds, while extracellular proteins tend to have several of them. | '''Cystine''' refers to the oxidative linkage between two molecules of [[cysteine]], one of the common [[amino acid]]s, in the form of a [[disulfide bond]]. It may also refer to such a bond that occurs between two cysteine amino acids in a [[protein]]. Typically, intracellular proteins have few, if any, such disulfide bonds, while extracellular proteins tend to have several of them. | ||
Such disulfide bonds are integral to the structural stability of many proteins. | Such disulfide bonds are integral to the structural stability of many proteins. | ||
Revision as of 06:51, 8 June 2009
Cystine refers to the oxidative linkage between two molecules of cysteine, one of the common amino acids, in the form of a disulfide bond. It may also refer to such a bond that occurs between two cysteine amino acids in a protein. Typically, intracellular proteins have few, if any, such disulfide bonds, while extracellular proteins tend to have several of them.
Such disulfide bonds are integral to the structural stability of many proteins.