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Literature summary extracted from

  • Yuan, W.; Zhang, D.; Song, T.; Xu, F.; Lin, S.; Xu, W.; Li, Q.; Zhu, Y.; Liang, J.; Zhang, J.
    Arabidopsis plasma membrane H+-ATPase genes AHA2 and AHA7 have distinct and overlapping roles in the modulation of root tip H+ efflux in response to low-phosphorus stress (2017), J. Exp. Bot., 68, 1731-1741 .
    View publication on PubMedView publication on EuropePMC

Activating Compound

EC Number Activating Compound Comment Organism Structure
7.1.2.1 14-3-3 protein the activated enzyme consists of 6 phosphorylated molecules, assembled in a hexameric structure, together with six 14-3-3 molecules Arabidopsis thaliana
7.1.2.1 auxin auxin regulates enzyme activity by phosphorylation Arabidopsis thaliana

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
7.1.2.1 ATP + H2O + H+[side 1] Arabidopsis thaliana
-
ADP + phosphate + H+[side 2]
-
?

Organism

EC Number Organism UniProt Comment Textmining
7.1.2.1 Arabidopsis thaliana
-
ecotype Col-0
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
7.1.2.1 phosphoprotein the enzyme is phosphorylated at Thr-947 Arabidopsis thaliana

Source Tissue

EC Number Source Tissue Comment Organism Textmining
7.1.2.1 root hair
-
Arabidopsis thaliana
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
7.1.2.1 ATP + H2O + H+[side 1]
-
Arabidopsis thaliana ADP + phosphate + H+[side 2]
-
?

Subunits

EC Number Subunits Comment Organism
7.1.2.1 homohexamer
-
Arabidopsis thaliana

Synonyms

EC Number Synonyms Comment Organism
7.1.2.1 AHA2
-
Arabidopsis thaliana
7.1.2.1 AHA7
-
Arabidopsis thaliana
7.1.2.1 plasma membrane H+-ATPase
-
Arabidopsis thaliana
7.1.2.1 PM H+-ATPase
-
Arabidopsis thaliana

Expression

EC Number Organism Comment Expression
7.1.2.1 Arabidopsis thaliana the expression of isoforms AHA2 and AHA7 in roots is enhanced under low-phosphorus stress conditions up

General Information

EC Number General Information Comment Organism
7.1.2.1 malfunction isoform AHA2-deficient plants exhibit reduced primary root elongation and lower H+ efflux in the root elongation zone. Isoform AHA7-deficient plants exhibit reduced root hair density and lower H+ efflux in the root hair zone Arabidopsis thaliana
7.1.2.1 physiological function under low-phosphorus conditions, isoform AHA2 acts mainly to modulate primary root elongation by mediating H+ efflux in the root elongation zone, whereas isoform AHA7 plays an important role in root hair formation by mediating H+ efflux in the root hair zone Arabidopsis thaliana