Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary extracted from

  • Hejazi, M.; Fettke, J.; Haebel, S.; Edner, C.; Paris, O.; Frohberg, C.; Steup, M.; Ritte, G.
    Glucan, water dikinase phosphorylates crystalline maltodextrins and thereby initiates solubilization (2008), Plant J., 55, 323-334.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.7.9.4 additional information Arabidopsis thaliana phosphorylation by GWD mediates phase transition from highly ordered to hydrated state glucans ?
-
?
2.7.9.4 additional information Arabidopsis thaliana phosphorylation of crystalline maltodextrin initiates solubilisation of both phosphorylated and neutral glucans ?
-
?
2.7.9.4 additional information Arabidopsis thaliana substrate-specificity defined by physical arrangements of alpha glucans and by molecular order of glucan helices ?
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.7.9.4 Arabidopsis thaliana
-
-
-
2.7.9.5 Arabidopsis thaliana
-
-
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.7.9.4 additional information
-
conversion of heat solubilized maltodextrin below 1 nmol/min/mg Arabidopsis thaliana
2.7.9.4 0.00007
-
wheat starch, kernel, A-allomorph Arabidopsis thaliana
2.7.9.4 0.00008
-
waxy maize starch, kernel, A-allomorph Arabidopsis thaliana
2.7.9.4 0.00011
-
maize starch, kernel, A-allomorph Arabidopsis thaliana
2.7.9.4 0.0012
-
amylose extender mutant maize, kernel, B-allomorph Arabidopsis thaliana
2.7.9.4 0.0023
-
potato starch, tuber, B-allomorph Arabidopsis thaliana
2.7.9.4 0.0112
-
Arabidopsis sex1-3, leaf, B-allomorph Arabidopsis thaliana
2.7.9.4 0.058
-
crystalline maltodextrin, B-allomorph Arabidopsis thaliana
2.7.9.5 additional information
-
no activity detectable on pre-phosphorylated, soluble maltodextrin Arabidopsis thaliana
2.7.9.5 0.002
-
pre-phosphorylated, crystalline maltodextrin Arabidopsis thaliana

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.9.4 ATP + alpha-glucan + H2O phosphorylation at C-6 position, crystallized maltodextrin, natural starch from maize, potato, Arabidopsis, A- and B-allomorph type Arabidopsis thaliana AMP + phospho-alpha-glucan + phosphate
-
?
2.7.9.4 additional information phosphorylation by GWD mediates phase transition from highly ordered to hydrated state glucans Arabidopsis thaliana ?
-
?
2.7.9.4 additional information phosphorylation of crystalline maltodextrin initiates solubilisation of both phosphorylated and neutral glucans Arabidopsis thaliana ?
-
?
2.7.9.4 additional information substrate-specificity defined by physical arrangements of alpha glucans and by molecular order of glucan helices Arabidopsis thaliana ?
-
?
2.7.9.4 additional information crystallized maltodextrin represents B-type starch allomorph, 30 min or 1 h, linear phosphorylation kinetics with respect to time and enzyme concentration (up to 1 h), phosphorylation at the surface of the crystalline maltodextrin, formation of a wide range of phosphoglucans (detection of mono-, di, and triphosphorylated alpha glucans), initiation of solubilisation of both phosphoglucans and neutral glucans from the crystalline maltodextrin Arabidopsis thaliana ?
-
?
2.7.9.5 ATP + phospho-maltodextrin + H2O only pre-phosphorylated, crystallised (insoluble) maltodextrin Arabidopsis thaliana AMP + O-phospho-[phospho-maltodextrin] + phosphate
-
?
2.7.9.5 additional information solubilised maltodextrin is no substrate whether pre-phosphorylated by glucan, water dikinase (GWD) or not Arabidopsis thaliana ?
-
?

Synonyms

EC Number Synonyms Comment Organism
2.7.9.4 glucan, water dikinase
-
Arabidopsis thaliana
2.7.9.4 GWD
-
Arabidopsis thaliana
2.7.9.5 phosphoglucan, water dikinase
-
Arabidopsis thaliana
2.7.9.5 PWD
-
Arabidopsis thaliana