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Literature summary for 3.6.5.1 extracted from

  • Li, Y.; Tang, X.; Yang, L.; Yu, Y.; Li, X.
    Possible involvement of heterotrimeric G-protein signaling in Al-induced secretion of organic acid anions in Arabidopsis and rye (2015), Plant Soil, 388, 55-63.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
cholera toxin a heterotrimeric G-protein agonist, stimulates the enzyme Arabidopsis thaliana
cholera toxin a heterotrimeric G-protein agonist, stimulates the enzyme Secale cereale

Protein Variants

Protein Variants Comment Organism
additional information mutant gpa1-3 is a heterotrimeric G-protein alpha-subunit deficient mutant generated by T-DNA insertion using the ecotype Col-0, agb1-2 is a heterotrimeric G-protein beta-subunit deficient mutant generated by T-DNA insertion Arabidopsis thaliana

Inhibitors

Inhibitors Comment Organism Structure
pertussis toxin a heterotrimeric G-protein antagonist, inhibits the enzyme Arabidopsis thaliana
pertussis toxin a heterotrimeric G-protein antagonist, inhibits the enzyme Secale cereale

Localization

Localization Comment Organism GeneOntology No. Textmining
plasma membrane
-
Arabidopsis thaliana 5886
-
plasma membrane
-
Secale cereale 5886
-

Metals/Ions

Metals/Ions Comment Organism Structure
Al3+ exposure of the rye roots to Al3+ results in activation of GTPase, Al-induced secretion is inhibited by pertussis toxin Secale cereale

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
45000
-
x * 45000, SDS-PAGE Arabidopsis thaliana
45000
-
x * 45000, SDS-PAGE Secale cereale

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
GTP + H2O Arabidopsis thaliana
-
GDP + phosphate
-
?
GTP + H2O Secale cereale
-
GDP + phosphate
-
?
GTP + H2O Arabidopsis thaliana Col-0
-
GDP + phosphate
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
-
-
Arabidopsis thaliana Col-0
-
-
-
Secale cereale
-
cv. King
-

Source Tissue

Source Tissue Comment Organism Textmining
root
-
Arabidopsis thaliana
-
root
-
Secale cereale
-
root apex
-
Secale cereale
-
seedling
-
Arabidopsis thaliana
-
seedling
-
Secale cereale
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
GTP + H2O
-
Arabidopsis thaliana GDP + phosphate
-
?
GTP + H2O
-
Secale cereale GDP + phosphate
-
?
GTP + H2O
-
Arabidopsis thaliana Col-0 GDP + phosphate
-
?

Subunits

Subunits Comment Organism
? x * 45000, SDS-PAGE Arabidopsis thaliana
? x * 45000, SDS-PAGE Secale cereale

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5
-
assay at Secale cereale

General Information

General Information Comment Organism
physiological function possible involvement of heterotrimeric G-protein signaling in Al-induced secretion of organic acid anions in Arabidopsis. Secretion of organic acid anions from the roots in response to aluminum is a common mechanism for Al resistance in plants Arabidopsis thaliana
physiological function possible involvement of heterotrimeric G-protein signaling in Al-induced secretion of organic acid anions in rye. Secretion of organic acid anions from the roots in response to aluminum is a common mechanism for Al resistance in plants Secale cereale