Membrane Potential, Mitochondrial

**Definition:** The voltage difference, normally maintained at approximately -180mV, across the INNER MITOCHONDRIAL MEMBRANE, by a net movement of positive charge across the membrane. It is a major component of the PROTON MOTIVE FORCE in MITOCHONDRIA used to drive the synthesis of ATP.

**Tree numbers:** - G03.295.770.500 - G04.580.550 - G07.265.675.550

**Synonyms:** - DeltaPsi M - DeltapsiM - Mitochondrial Membrane Potential - Mitochondrial Transmembrane Potential - Delta Psi M