molecular function regulator activity molecular function inhibitor activity https://github.com/geneontology/go-ontology/issues/21782 https://github.com/geneontology/go-ontology/issues/25165 A molecular function regulator that inhibits or decreases the activity of its target via non-covalent binding that does not result in covalent modification to the target. pg 2021-07-07T07:24:32Z This term should only be used in cases when the regulator directly interacts with the enzyme, but does not result in a covalent modification. GO:0140678 molecular_function