Summary

Name ATP6AP1
Full Name V-type proton ATPase subunit S1
Synonyms V-ATPase subunit S1, Protein XAP-3, V-ATPase Ac45 subunit, V-ATPase S1 accessory protein, Vacuolar proton pump subunit S1 | ATP6IP1, ATP6S1, VATPS1, XAP3
Primary ID Q15904
Links - -
Type protein
Relations 3
Function Accessory subunit of the proton-transporting vacuolar (V)-ATPase protein pump, which is required for luminal acidification of secretory vesicles. Guides the V-type ATPase into specialized subcellular compartments, such as neuroendocrine regulated secretory vesicles or the ruffled border of the osteoclast, thereby regulating its activity. Involved in membrane trafficking and Ca(2+)-dependent membrane fusion. May play a role in the assembly of the V-type ATPase complex. In aerobic conditions, involved in intracellular iron homeostasis, thus triggering the activity of Fe(2+) prolyl hydroxylase (PHD) enzymes, and leading to HIF1A hydroxylation and subsequent proteasomal degradation (PubMed:28296633).

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Relations

Regulator Mechanism target score
+ form complex img/form-complex.png binding V-ATPase 0.578
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/indirect_inhibition.png HIF1A 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding RAB7A 0.294
Publications: 1