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Literature summary for 7.1.3.1 extracted from

  • Graus, D.; Konrad, K.R.; Bemm, F.; Patir Nebioglu, M.G.; Lorey, C.; Duscha, K.; Guethoff, T.; Herrmann, J.; Ferjani, A.; Cuin, T.A.; Roelfsema, M.R.G.; Schumacher, K.; Neuhaus, H.E.; Marten, I.; Hedrich, R.
    High V-PPase activity is beneficial under high salt loads, but detrimental without salinity (2018), New Phytol., 219, 1421-1432 .
    View publication on PubMedView publication on EuropePMC
Search for more literature for 7.1.3.1

Localization

Localization Comment Organism GeneOntology No. Textmining
vacuolar membrane
-
 Nicotiana benthamiana 5774
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
diphosphate + H2O + H+[side 1] Nicotiana benthamiana
-
 2 phosphate + H+[side 2]
-
 ?

Organism

Organism UniProt Comment Textmining
Nicotiana benthamiana A0A238ML06 isoform VHP1
-
Nicotiana benthamiana A0A238MN04 isoform VHP2
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
 Nicotiana benthamiana
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
diphosphate + H2O + H+[side 1]
-
 Nicotiana benthamiana 2 phosphate + H+[side 2]
-
 ?

Synonyms

Synonyms Comment Organism
membrane-bound proton-pumping pyrophosphatase
-
 Nicotiana benthamiana
pyrophosphate-driven proton pump
-
 Nicotiana benthamiana
type-I H+-PPase
-
 Nicotiana benthamiana
V-PPase
-
 Nicotiana benthamiana
VHP
-
 Nicotiana benthamiana
VHP1 isoform Nicotiana benthamiana
VHP2 isoform Nicotiana benthamiana

General Information

General Information Comment Organism
physiological function enzyme overexpression leads to higher vacuolar proton currents and vacuolar acidification. After 3 d in salt-untreated conditions, enzyme-overexpressing leaves show a drop in photosynthetic capacity, plasma membrane depolarization and eventual leaf necrosis. Salt, however, rescues enzyme-hyperactive cells from cell death. Under normal growth conditions, plants need to regulate the enzyme activity to avoid hyperactivity and its negative feedback on cell viability Nicotiana benthamiana