EC - Mg2+-importing ATPase

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IntEnz Enzyme Nomenclature


Accepted name:
Mg2+-importing ATPase
Systematic name:
ATP phosphohydrolase (Mg2+-importing)




A P-type ATPase that undergoes covalent phosphorylation during the transport cycle. This enzyme occurs in both Gram-positive and Gram-negative bacteria, and three types are known, designated as CorA, MgtA and MgtB. The CorA itself is not an ATPase but an Mg2+ transporter.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Protein domains and families: PROSITE:PDOC00139
Structural data: CSA , EC2PDB
Gene Ontology: GO:0015444


  1. Tao, T., Snavely, M.D., Farr, S.G. and Maguire, M.E.
    Magnesium transport in Salmonella typhimurium: mtgA encodes a P-type ATPase and is regulated by Mg2+ in a manner similar to that of the mgtB P-type ATPase.
    J. Bacteriol. 177: 2654-2662 (1995). [PMID: 7751273]
  2. Smith, R.L., Szegedy, M.A., Kucharski, L.M., Walker, C., Wiet, R.M., Redpath, A., Kaczmarek, M.T. and Maguire, M.E.
    The CorA Mg2+ transport protein of Salmonella typhimurium. Mutagenesis of conserved residues in the third membrane domain identifies a Mg2+ pore.
    J. Biol. Chem. 273: 28663-28669 (1998). [PMID: 9786860]

[EC created 2000, modified 2001]