Atp driven pumps?

Use energy released by hydrolysis of ATP to transport ions and molecules against their concentration gradient ATP binding site in the cytosolic side Four main classes P-class: require the catalytic subunits to be phosphorylated as part of transport cycle V-class: not phosphorylated, will transport protons F-class: not phosphorylated, use the conc gradient of protons to synthesis ATP ABC transporters: transfer small molecules and are also found in bacteria