ion pumps

https://doi.org/10.1351/goldbook.IT06773
Ion pumps enable ions to flow through membranes in a thermodynamically uphill direction by the use of an energy source such as ATP or light. They consist of sugar-containing hetero-peptide assemblies, which open and close upon the binding and subsequent @[email protected] of ATP, usually transporting more than one ion towards the outside or the inside of the @[email protected]
Source:
PAC, 1997, 69, 1251. (Glossary of terms used in bioinorganic chemistry (IUPAC Recommendations 1997)) on page 1281 [Terms] [Paper]