Also found in: Dictionary, Thesaurus, Encyclopedia.
the ability of an enzyme to recognize and bind its substrates, typically measured by the Vmax/Km or kcat/Km ratios.
any substance upon which an enzyme acts.
substrate binding site
part of the active site of an enzyme which includes the amino acid residues that come into contact with the substrate.
range of substrates that can be catalytically converted to product by an enzyme.
see suicide substrate.