allosteric effect The binding of a ligand to one site on a protein molecule in such a way that the properties of another site on the same protein are affected. Some enzymes are allosteric proteins, and their activity is regulated through the binding of an effector to an allosteric site.

What is allosteric effect in hemoglobin?

Haemoglobin is an allosteric protein. This means that the binding of oxygen to one of the subunits is affected by its interactions with the other subunits. … This reflects the different functions of the two oxygen binding proteins.

What is allosteric in biology?

The allosteric site is a site that allows molecules to either activate or inhibit (or turn off) enzyme activity. It’s different than the active site on an enzyme, where substrates bind.