The binding of a regulatory molecule to a protein at one site that affects the function of the protein at a different site.
A metabolic pathway that synthesizes a complex molecule from simpler compounds.
A metabolic pathway that releases energy by breaking down complex molecules to simpler compounds.
An organic molecule that is a necessary participant in some enzymatic reactions; helps catalysis by donating or accepting electrons or functional groups
Any nonprotein molecule or ion that is required for the proper functioning of an enzyme. Cofactors can be permanently bound to the active site or may bind loosely with the substrate during catalysis
A substance that reduces the activity of an enzyme by entering the active site in place of the substrate whose structure it mimics
An interaction of the constituent subunits of a protein whereby a conformational change in one subunit is transmitted to all the others.
A non-spontaneous chemical reaction in which free energy is absorbed from the surroundings.
In cellular metabolism, the use of energy released from an exergonic reaction to drive an endergonic reaction.
A quantitative measure of disorder or randomness, symbolized by S.
A spontaneous chemical reaction in which there is a net release of free energy.
A method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway.
The portion of a system's energy that can perform work when temperature and pressure are uniform throughout the system.
total amount of kinetic energy due to molecular motion in a body of matter. It is energy in most random form
The totality of an organism's chemical reactions
A substance that reduces the activity of an enzyme by binding to a location remote from the active site, changing its conformation so that it no longer binds to the substrate.