What are Holoenzymes and Apoenzymes?

What are Holoenzymes and Apoenzymes?

An apoenzyme is an inactive enzyme, activation of the enzyme occurs upon binding of an organic or inorganic cofactor. Holoenzyme- An apoenzyme together with its cofactor. A holoenzyme is complete and catalytically active. Most cofactors are not covalently bound but instead are tightly bound.

What is the function of Apoenzyme?

Apoenzyme. Definition noun, plural: apoenzymes (biochemistry) The protein component in which together with a cofactor forms a complete enzyme Supplement Enzymes can speed up biochemical processes. Some enzymes need cofactors (non-protein molecules) to carry out catalysis while others do not.

What is a coenzyme and what does it do?

Medical Definition of Coenzyme Coenzymes are small molecules. They cannot by themselves catalyze a reaction but they can help enzymes to do so. In technical terms, coenzymes are organic nonprotein molecules that bind with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme).