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

No more urgent necessity had ever arisen than this present, and One-Tree Pass for once in its life became the active centre of the island.

From White Fire by Oxenham, John

There is an active centre of distribution in South-eastern Europe itself, from which species radiate out in all directions.

From The History of the European Fauna by Scharff, Robert Francis

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)