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| A '''dimer''' is a ] composed of two subunits linked together. It is a special case of a ]. Among the most common dimers are certain types of ]; ], for example, is a dimer of a ] molecule and a ] molecule. | A '''dimer''' is a ] composed of two subunits linked together. It is a special case of a ]. Among the most common dimers are certain types of ]; ], for example, is a dimer of a ] molecule and a ] molecule. | ||
| In ], a dimer is a ] made up of two protein molecules. In a ] the two protein molecules are identical, and in a ] they differ. | In ], a dimer is a ] made up of two ] molecules. In a ] the two protein molecules are identical, and in a ] they differ. | ||
Revision as of 06:33, 5 July 2003
A sucrose molecule, which is a dimer consisting of a glucose molecule and a fructose molecule
A dimer is a molecule composed of two subunits linked together. It is a special case of a polymer. Among the most common dimers are certain types of sugar; sucrose, for example, is a dimer of a glucose molecule and a fructose molecule.
In biology, a dimer is a protein complex made up of two protein molecules. In a homodimer the two protein molecules are identical, and in a heterodimer they differ.