active site

noun
|Updated on: 2 May 2018

Definition of active site

: a region on the surface of an enzyme whose shape permits binding only of a specific molecular substrate that then undergoes catalysis

Recent Examples of active site from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'active site.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of active site

1957

in the meaning defined above

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Medical Dictionary

active site

noun

medical Definition of active site

: a region especially of a biologically active protein (as an enzyme) where catalytic activity takes place and whose shape permits the binding only of a specific reactant molecule

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