The Enzyme Database

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Accepted name: P-type Mg2+ transporter
Reaction: ATP + H2O + Mg2+[side 1] = ADP + phosphate + Mg2+[side 2]
Other name(s): Mg2+-transporting P-type ATPase; Mg2+-transporting ATPase; Mg2+-importing ATPase; magnesium-translocating P-type ATPase; mgtA (gene name); mgtB (gene name)
Systematic name: ATP phosphohydrolase (P-type, Mg2+-importing)
Comments: A P-type ATPase that undergoes covalent phosphorylation during the transport cycle. A bacterial enzyme that imports Mg2+ with, rather than against, the Mg2+ electrochemical gradient. The enzyme is also involved in Ni2+ import.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Snavely, M.D., Miller, C.G. and Maguire, M.E. The mgtB Mg2+ transport locus of Salmonella typhimurium encodes a P-type ATPase. J. Biol. Chem. 266 (1991) 815–823. [PMID: 1824701]
2.  Maguire, M.E. MgtA and MgtB: prokaryotic P-type ATPases that mediate Mg2+ influx. J. Bioenerg. Biomembr. 24 (1992) 319–328. [PMID: 1328179]
3.  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 (1995) 2654–2662. [DOI] [PMID: 7751273]
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