protein machine

https://doi.org/10.1351/goldbook.09769
Supramolecular interacting system, such as a metabolic circuit, intracellular signal transduction, or cell-to-cell communication.
Note: These systems are operated under process control strategies involving integrated feedback control. The input and output of the circuits or modules are coordinated to assure the normal or adaptive function of the cell or organism.
Source:
PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1161 (https://doi.org/10.1515/pac-2016-1120)