UCP3 Antibody – Rabbit Polyclonal

Mitochondrial uncoupling proteins (UCP) are members of the larger family of mitochondrial anion carrier proteins (MACP). UCPs separate oxidative phosphorylation from ATP synthesis with energy dissipated as heat, also referred to as the mitochondrial proton leak. UCPs facilitate the transfer of anions from the inner to the outer mitochondrial membrane and the return transfer of protons from the outer to the inner mitochondrial membrane. They also reduce the mitochondrial membrane potential in mammalian cells. The different UCPs have tissue-specific expression; this gene is primarily expressed in skeletal muscle. This gene's protein product is postulated to protect mitochondria against lipid-induced oxidative stress. Expression levels of this gene increase when fatty acid supplies to mitochondria exceed their oxidation capacity and the protein enables the export of fatty acids from mitochondria. UCPs contain the three solcar protein domains typically found in MACPs. Two splice variants have been found for this gene.[provided by RefSeq, Nov 2008]

UCP3: UCP are mitochondrial transporter proteins that create proton leaks across the inner mitochondrial membrane, thus uncoupling oxidative phosphorylation. As a result, energy is dissipated in the form of heat. May play a role in the modulation of tissue respiratory control. Participates in thermogenesis and energy balance. Defects in UCP3 may be involved in obesity (OBESITY). It is a condition characterized by an increase of body weight beyond the limitation of skeletal and physical requirements, as the result of excessive accumulation of body fat. Belongs to the mitochondrial carrier family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Mitochondrial; Transporter; Membrane protein, multi-pass; Membrane protein, integral

Chromosomal Location of Human Ortholog: 11q13.4

Cellular Component: mitochondrion; mitochondrial inner membrane; integral to membrane

Molecular Function: protein binding; transporter activity; oxidative phosphorylation uncoupler activity

Biological Process: response to superoxide; response to glucocorticoid stimulus; respiratory gaseous exchange; fatty acid metabolic process; mitochondrial transport; response to insulin stimulus; cellular response to hormone stimulus; cellular metabolic process; proton transport; response to hypoxia; response to activity; response to cold; lipid metabolic process; response to nutrient; aging

Disease: Obesity