n.辅助因素；辅因子；余因子
NS4A is a cofactor of the NS3 protease. NS3蛋白质被报导过具有自身内部截切的现象。
An enzyme without its cofactor is termed an apoenzyme. 没有辅助因子的酶叫做脱辅酶。
Magnesium is involved as a cofactor in many enzyme transfers. 镁是许多酶转变的辅助因素。
Magnesium is a cofactor in hundreds of enzymatic reactions. 镁是人体内多种酶的激活剂。
P53 may interact with other proteins as a activator, an repressor or cofactor. P53蛋白也可以与其它蛋白相互作用作为激活子、抑制子或者辅助因子。
Many enzymes will not work without the presence of an additional nonprotein substance called a cofactor. 许多酶如不外加一种叫做辅助因子的非蛋白质物质就不能工作。
