PMA1
Function
The plasma membrane ATPase of plants and fungi is a hydrogen ion pump. The proton gradient it generates drives the active transport of nutrients by H(+)-symport. The resulting external acidification and/or internal alkinization may mediate growth responses.
Post-translational modifications
Phosphorylated on multiple Ser and Thr residues.
Sequence Similarities
Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIIA subfamily.
Cellular localization
- Cell membrane
- Multi-pass membrane protein
Alternative names
YGL008C, PMA1, Plasma membrane ATPase 1, Proton pump 1