enzyme complex

This term is used exclusively within biochemistry and molecular biology to describe a higher-order organization of proteins. It implies a functional synergy where the product of one enzyme is passed directly to the next, minimizing the diffusion of intermediates and increasing the overall reaction rate.

In a laboratory or academic context, the term is highly technical and neutral. It is distinct from a simple mixture of enzymes, as a complex suggests a specific structural association or physical binding between the protein subunits.