Definition of active site in English:

active site

Syllabification: ac·tive site

noun

Biochemistry
  • A region on an enzyme that binds to a protein or other substance during a reaction.
    More example sentences
    • We propose that calcium ions set the machine in motion by initiating the contraction of the actin-myosin that they bind at active sites on the proteins.
    • The second step involves binding of phospholipid molecules in the active site of the adsorbed enzyme.
    • Extremes of pH or temperature irreversibly abolish enzyme activity, and so also do some substances that bind to the active sites of particular enzymes.

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