cofactor

IPA: kˈoʊfæktɝ

A contributing factor.
(biochemistry) A substance, especially a coenzyme or a metal, that must be present for an enzyme to function.
(biochemistry) A molecule that binds to and regulates the activity of a protein.
(mathematics) The result of a number being divided by one of its factors.
(mathematics, linear algebra, of a matrix) The signed determinant of the submatrix produced by removing the row and column containing a specified element; primarily used in the recursive definition and calculation of the determinant of a matrix.

Examples of "cofactor" in Sentences

It has one cofactor the flavin FAD.
It requires potassium as a cofactor.
Manganese is required as a cofactor.
A magnesium ion is involved as a cofactor.
Heme is a cofactor of the protein hemoglobin.
Trivalent chromium is the cofactor of insulin.
The adjoint is the Transpose of the Cofactor matrix.
It makes no mention of the requirement of a cofactor.
F2RL2 is a cofactor for F2RL3 activation by thrombin.
A portion of the heparin forms a complex with the cofactor.
PQQ is a substance that was discovered in 1979 as a cofactor in bacterial enzyme activity.
Enzymatic methane production involves the tiny molecule deazaflavin, known as cofactor F0 or cofactor F420.
The broad array of lysosomal storage diseases and peroxisomal disorders are presented along with the defects in transport, vitamin cofactor and metal metabolism.
"It took several years, but at last we were able to recreate in the test tube what happens inside mycobacterial cells when the bacterial enzyme, which we named Ddn, and a second bacterial component called a cofactor, interact with PA-824," says Dr. Barry.
The thyroid uses glutathione, a combination of three amino acids (glycine, glutamine, and cysteine), protectively as an antioxidant or free radical quencher and as a cofactor that makes it possible for one of its most important enzymes (5'-deiodinase) to work (6).