酶的催化中心是由一组氨基酸组成，其三维结构形成活性位点，允许它高效地结合或修饰底物。

The catalytic center of an enzyme is composed of a set of amino acids whose three-dimensional arrangement forms the "active-site" that allows them to efficiently bind and modify the substrate.

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活性中心由催化基团和结合基团，他们与高分子共同构成一个立体结构。

Catalytic active site by the group and the combined group, who co-polymer with a three-dimensional structure.

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金属离子可以是辅助因素的催化中心，也可以帮助形成酶活性所必须的构象。

The metal ion may be the catalytic center of the cofactor, or it may serve to bind the enzyme and substrate together to hold the enzyme in a catalytically active conformation.

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