Carrier protein

Transportation (also: Carrier or permeases ) are membrane-bound transport proteins whose main transport process is coupled to either a conformational change (carrier for the Uniport ) or with a second transport process ( symport, antiport ). Transportation thus differ from the completely passive channel - and pore- forming proteins, as well as by the active ATPases. This is known as facilitated diffusion in the case of Uniport and secondary active transport at Sym - and antiport. Many important for all living things transport proteins belong to the transporters. They form 2.A. subclass in the TCDB ​​classification.

Membrane proteins that function according to a Symportmechanismus, transport and substrate coupling Sion in the same direction. In contrast, if two substrates transported in opposite directions, it is called an anti- port system.

Important families within the transporter subclass are the major facilitator proteins ( with the glucose transporters ), the solute: sodium symporter (SSS ), the mitochondrial carrier chloride Carrier / channels, the organo anion transporter and the oligopeptide transporter.