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Information on EC 3.1.3.B9 - L-galactose 1-phosphate phosphatase and Organism(s) Arabidopsis thaliana and UniProt Accession Q9M8S8

for references in articles please use BRENDA:EC3.1.3.B9
preliminary BRENDA-supplied EC number
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EC Tree
     3 Hydrolases
         3.1 Acting on ester bonds
             3.1.3 Phosphoric-monoester hydrolases
                3.1.3.B9 L-galactose 1-phosphate phosphatase
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This record set is specific for:
Arabidopsis thaliana
UNIPROT: Q9M8S8 not found.
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Word Map
The taxonomic range for the selected organisms is: Arabidopsis thaliana
The enzyme appears in selected viruses and cellular organisms
Synonyms
l-galactose-1-phosphate phosphatase, ntgppase, at3g02870, l-galactose-1-p phosphatase, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
L-galactose-1-P phosphatase
-
L-galactose-1-phosphate phosphatase
-
SYSTEMATIC NAME
IUBMB Comments
L-galactose 1-phosphate phosphohydrolase
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
L-galactose 1-phosphate + H2O
L-galactose + phosphate
show the reaction diagram
additional information
?
-
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
L-galactose 1-phosphate + H2O
L-galactose + phosphate
show the reaction diagram
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
additional information
ascorbate is not an inhibitor of VTC4
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.107 - 0.15
L-galactose 1-phosphate
Ki VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
3.7
LiCl
pH 7.0, 30°C
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
16.4
pH 7.0, 30°C
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
pI VALUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
5.01
calculated from sequence
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
physiological function
VTC4 is a bifunctional enzyme that impacts both myo-inositol and ascorbate synthesis pathways
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
VTC4_ARATH
271
0
29121
Swiss-Prot
-
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
29121
2 * 29121, calculated from sequence
33100
x * 33100, calculated from sequence
39700
x * 39700, SDS-PAGE
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
dimer
2 * 29121, calculated from sequence
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
cloned into a plasmid construct containing the T7 viral promoter, an N-terminal polyhistidine peptide, an Xpress epitope, and an EK cleavage site (pAtIMPH). Overexpression of soluble VTC4 protein in Escherichia coli strain pREP4/BL21(DE3)
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Conklin, P.L.; Gatzek, S.; Wheeler, G.L.; Dowdle, J.; Raymond, M.J.; Rolinski, S.; Isupov, M.; Littlechild, J.A.; Smirnoff, N.
Arabidopsis thaliana VTC4 encodes L-galactose-1-P phosphatase, a plant ascorbic acid biosynthetic enzyme
J. Biol. Chem.
281
15662-15670
2006
Arabidopsis thaliana (Q9M8S8), Arabidopsis thaliana
Manually annotated by BRENDA team
Torabinejad, J.; Donahue, J.L.; Gunesekera, B.N.; Allen-Daniels, M.J.; Gillaspy, G.E.
VTC4 is a bifunctional enzyme that affects myoinositol and ascorbate biosynthesis in plants
Plant Physiol.
150
951-961
2009
Arabidopsis thaliana (Q9M8S8)
Manually annotated by BRENDA team
Laing, W.A.; Bulley, S.; Wright, M.; Cooney, J.; Jensen, D.; Barraclough, D.; MacRae, E.
A highly specific L-galactose-1-phosphate phosphatase on the path to ascorbate biosynthesis
Proc. Natl. Acad. Sci. USA
101
16976-16981
2004
Actinidia deliciosa (Q5U789), Actinidia deliciosa, Actinidia deliciosa A. Chev. (Q5U789), Arabidopsis thaliana (Q9M8S8), Arabidopsis thaliana
Manually annotated by BRENDA team