ATPase H+ transporting accessory protein 2
The information on this page was automatically extracted from online scientific databases.
From NCBI Gene:
This gene encodes a protein that is associated with adenosine triphosphatases (ATPases). Proton-translocating ATPases have fundamental roles in energy conservation, secondary active transport, acidification of intracellular compartments, and cellular pH homeostasis. There are three classes of ATPases- F, P, and V. The vacuolar (V-type) ATPases have a transmembrane proton-conducting sector and an extramembrane catalytic sector. The encoded protein has been found associated with the transmembrane sector of the V-type ATPases. [provided by RefSeq, Jul 2008]
Multifunctional protein which functions as a renin, prorenin cellular receptor and is involved in the assembly of the proton-transporting vacuolar (V)-ATPase protein pump (PubMed:12045255, PubMed:29127204). May mediate renin-dependent cellular responses by activating ERK1 and ERK2 (PubMed:12045255). By increasing the catalytic efficiency of renin in AGT/angiotensinogen conversion to angiotensin I, it may also play a role in the renin-angiotensin system (RAS) (PubMed:12045255). Probably by controlling the assembly of the V-ATPase pump and thus the acidification of the endo-lysosomal system, plays a role in many neuronal processes including synapse morphology and synaptic transmission (By similarity).
From NCBI Gene:
- Mental retardation, X-linked, syndromic, Hedera type
- Parkinsonism with spasticity, X-linked
Defects in ATP6AP2 may be involved in a glycosylation disorder with autophagic defects characterized by serum protein hypoglycosylation, immunodeficiency, liver disease, psychomotor impairment, and cutis laxa.
Parkinsonism with spasticity, X-linked (XPDS): A syndrome characterized by parkinsonian features, such as cogwheel rigidity, resting tremor and bradykinesia, and variably penetrant spasticity. [MIM:300911]
Mental retardation, X-linked, with epilepsy (MRXE): A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period. MRXE patients manifest mild to moderate mental retardation associated with epilepsy, delays in motor milestones and speech acquisition in infancy. [MIM:300423]