The specific portion of an enzyme that attaches to the substrate by means of weak chemical bonds.

A pocket or crevice on an enzyme molecule that fits reactant molecules like a hand in a glove. The active site lowers the activation energy for reaction.

A site on an ice nucleus that forms ice at a lower supersaturation or a smaller supercooling than elsewhere, resulting from a local impurity or defect giving a region of local strain and deformation i [..]

An active site contains the amino acid residues directly involved in catalytic activity. Witihin the InterPro resources a match to an InterPro entry of this type indicates one or more residues that ar [..]

Any location on the surface of a molecule that reacts with another molecule.

  1. A site on the surface of a catalyst at which activity occurs.

The region of an enzyme molecule that contains the substrate binding site and the catalytic site for converting the substrate(s) into product(s).

location on the enzyme where the substrate joins

Region of an enzyme molecule where the substrate binds and undergoes a catalyzed reaction.

The catalytic site of an enzyme.

<chemistry> A specific region of an enzyme where a substrate binds and catalysis takes place (binding site). (06 May 1997)

The part of a protein that must be maintained in a specific shape if the protein is to be functional, for example, the part to which the substrate binds in an enzyme. The part of an enzyme where the a [..]