Definition: A lipid-soluble benzoquinone which is involved in ELECTRON TRANSPORT in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals.
Ubiquinone Q2 [ Ubiquinone Q2, (E)-isomer,coenzyme Q2,ubiquinone 10,ubiquinone-2 ] interacts with iron atom to form acceptor quinone complex; RN given refers to cpd with unspecified isomeric designation