active centre

British  

noun

1. Also called: active site.  biochem the region in an enzyme molecule in which the reactive groups that participate in its action are juxtaposed

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Example Sentences

Olga Mayans and Jennifer Fleming created a three-dimensional model of its enzyme structure and active centre to understand the reaction pathway.

From Science Daily • Nov. 10, 2023

By 1700 Boston had already overtaken Oxford and Cambridge to become the second most active centre of publishing of English books after London.

From BBC • Nov. 25, 2013

Of this widespread commotion London was the active centre; and there a judgment of God, called the plague, had, in the year 1625, desolated whole streets.

From The Continental Monthly, Vol. 4, No. 4, October, 1863 Devoted to Literature and National Policy by Various

Wallingford, six miles above Streatley, is a very ancient town, and has been an active centre for the making of English history. 

From Three Men in a Boat by Jerome, Jerome K. (Jerome Klapka)

His disregard of popular desire suggests the fatal ease with which we neglect the opinion of those who stand outside the active centre of political conflict.

From Political Thought in England from Locke to Bentham by Laski, Harold Joseph