ATP5E Antibody – Mouse Monoclonal

This gene encodes a subunit of mitochondrial ATP synthase. Mitochondrial ATP synthase catalyzes ATP synthesis, utilizing an electrochemical gradient of protons across the inner membrane during oxidative phosphorylation. ATP synthase is composed of two linked multi-subunit complexes: the soluble catalytic core, F1, and the membrane-spanning component, Fo, comprising the proton channel. The catalytic portion of mitochondrial ATP synthase consists of 5 different subunits (alpha, beta, gamma, delta, and epsilon) assembled with a stoichiometry of 3 alpha, 3 beta, and a single representative of the other 3. The proton channel consists of three main subunits (a, b, c). This gene encodes the epsilon subunit of the catalytic core. Two pseudogenes of this gene are located on chromosomes 4 and 13. Read-through transcripts that include exons from this gene are expressed from the upstream gene SLMO2.[provided by RefSeq, Mar 2011]

ATP5E: Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core, and F(0) - containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation. Part of the complex F(1) domain and of the central stalk which is part of the complex rotary element. Rotation of the central stalk against the surrounding alpha(3)beta(3) subunits leads to hydrolysis of ATP in three separate catalytic sites on the beta subunits. Defects in ATP5E are the cause of mitochondrial complex V deficiency nuclear type 3 (MC5DN3). MC5DN3 is a mitochondrial disorder with heterogeneous clinical manifestations including dysmorphic features, psychomotor retardation, hypotonia, growth retardation, cardiomyopathy, enlarged liver, hypoplastic kidneys and elevated lactate levels in urine, plasma and cerebrospinal fluid. Belongs to the eukaryotic ATPase epsilon family.

Protein type: Mitochondrial; Transporter; Hydrolase; Energy Metabolism - oxidative phosphorylation; Membrane protein, integral; EC 3.6.3.14

Chromosomal Location of Human Ortholog: 20q13.32

Cellular Component: mitochondrial matrix; mitochondrial proton-transporting ATP synthase complex

Molecular Function: ATPase activity; hydrogen ion transporting ATP synthase activity, rotational mechanism; transmembrane transporter activity; hydrogen ion transporting ATPase activity, rotational mechanism

Biological Process: cellular metabolic process; mitochondrial ATP synthesis coupled proton transport

Disease: Mitochondrial Complex V (atp Synthase) Deficiency, Nuclear Type 3