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Literature summary for 2.7.7.13 extracted from

  • Qin, H.; Deng, Z.; Zhang, C.; Wang, Y.; Wang, J.; Liu, H.; Zhang, Z.; Huang, R.; Zhang, Z.
    Rice GDP-mannose pyrophosphorylase OsVTC1-1 and OsVTC1-3 play different roles in ascorbic acid synthesis (2016), Plant Mol. Biol., 90, 317-327.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene OsVTC1-1, DNA and amino acid sequence determination and analysis, sequence comparisons, phylogenetic analysis, recombinant expression of His-tagged enzyme in Escherichia coli strain BL21(DE3) Oryza sativa Japonica Group
gene OsVTC1-3, DNA and amino acid sequence determination and analysis, sequence comparisons, phylogenetic analysis, recombinant expression of His-tagged enzyme in Escherichia coli strain BL21(DE3) Oryza sativa Japonica Group
gene OsVTC1-8, DNA and amino acid sequence determination and analysis, sequence comparisons, phylogenetic analysis, recombinant expression of His-tagged enzyme in Escherichia coli strain BL21(DE3) Oryza sativa Japonica Group

Protein Variants

Protein Variants Comment Organism
additional information generation of OsVTC1-1 silenced mutant plants by RNAi method Oryza sativa Japonica Group
additional information generation of OsVTC1-3 silenced mutant plants by RNAi method Oryza sativa Japonica Group
additional information generation of OsVTC1-8 silenced mutant plants by RNAi method Oryza sativa Japonica Group

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Oryza sativa Japonica Group

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
GTP + alpha-D-mannose 1-phosphate Oryza sativa Japonica Group
-
diphosphate + GDP-mannose
-
?

Organism

Organism UniProt Comment Textmining
Oryza sativa Japonica Group Q6Z9A3 OsVTC1-8 or GMPP3
-
Oryza sativa Japonica Group Q84JH5
-
-
Oryza sativa Japonica Group Q84JH5 OsVTC1-3 or GMPP1
-
Oryza sativa Japonica Group Q941T9
-
-
Oryza sativa Japonica Group Q941T9 OsVTC1-1 or GMPP2
-

Purification (Commentary)

Purification (Comment) Organism
recombinant His-tagged enzyme from Escherichia coli strain BL21(DE3) by nickel affinity chromatography Oryza sativa Japonica Group

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Oryza sativa Japonica Group
-
leaf expression is high in leaf Oryza sativa Japonica Group
-
leaf high light-induced expression level Oryza sativa Japonica Group
-
additional information OsVTC1-8 transcript level is low in both leaves and roots Oryza sativa Japonica Group
-
root
-
Oryza sativa Japonica Group
-
root expression is high in root Oryza sativa Japonica Group
-
root high dark-induced expression level Oryza sativa Japonica Group
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
GTP + alpha-D-mannose 1-phosphate
-
Oryza sativa Japonica Group diphosphate + GDP-mannose
-
?

Synonyms

Synonyms Comment Organism
GDP-D-mannose pyrophosphorylase
-
Oryza sativa Japonica Group
GDP-mannose pyrophosphorylase
-
Oryza sativa Japonica Group
GMPase
-
Oryza sativa Japonica Group
GMPP1
-
Oryza sativa Japonica Group
GMPP2
-
Oryza sativa Japonica Group
GMPP3
-
Oryza sativa Japonica Group
Os01g0847200
-
Oryza sativa Japonica Group
Os03g0268400
-
Oryza sativa Japonica Group
OsVTC1-1
-
Oryza sativa Japonica Group
OsVTC1-3
-
Oryza sativa Japonica Group
OsVTC1-8
-
Oryza sativa Japonica Group
VCT1-1
-
Oryza sativa Japonica Group
VCT1-3
-
Oryza sativa Japonica Group
VTC1-1
-
Oryza sativa Japonica Group
VTC1-3
-
Oryza sativa Japonica Group

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Oryza sativa Japonica Group

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at Oryza sativa Japonica Group

Expression

Organism Comment Expression
Oryza sativa Japonica Group expression is inhibited by dark down
Oryza sativa Japonica Group the expression of OsVTC1-1 is inhibited in roots in the dark down
Oryza sativa Japonica Group the expression of OsVTC1-3 is inhibited in roots in the light down
Oryza sativa Japonica Group expression is induced by light up
Oryza sativa Japonica Group expression is induced by the dark up
Oryza sativa Japonica Group expression is induced by dark up
Oryza sativa Japonica Group the expression of OsVTC1-1 is induced in roots in the light up
Oryza sativa Japonica Group the expression of OsVTC1-3 is induced in roots in the dark up

General Information

General Information Comment Organism
malfunction overexpression of OsVTC1-8 does not restore the ascorbic acid synthesis of the vtc1-1 mutant in Arabidopsis Oryza sativa Japonica Group
metabolism enzyme OsVTC1-1 and OsVTC1-3 have higher GMPase activities than enzyme OsVTC1-8 in vitro. Only OsVTC1-1 and OsVTC1-3 are involved in ascorbic acid synthesis in rice Oryza sativa Japonica Group
physiological function in VTC1-1 RNAi plants, the ascorbic acid content of rice leaves decreases, and the ascorbic acid production induced by light is limited. The overexpression of isoform VTC1-1 or OsVTC1-3 restores the ascorbic acid synthesis of a vtc1-1 mutant in Arabidopsis thaliana Oryza sativa Japonica Group
physiological function VTC1-3 RNAi lines alter ascorbic acid synthesis levels in rice roots, but not in the leaves or under the light/dark treatment. The overexpression of isooform VTC1-1 or OsVTC1-3 restores the ascorbic acid synthesis of a vtc1-1 mutant in Arabidopsis thaliana Oryza sativa Japonica Group
physiological function enzyme OsVTC1-1 may be involved in the ascorbic acid synthesis, which takes place in leaves. Overexpression of OsVTC1-1 restores the ascorbic acid synthesis of the vtc1-1 mutant in Arabidopsis Oryza sativa Japonica Group
physiological function enzyme OsVTC1-3 may be responsible for ascorbic acid synthesis in roots. Overexpression of OsVTC1-3 restores the ascorbic acid synthesis of the vtc1-1 mutant in Arabidopsis Oryza sativa Japonica Group
physiological function the overexpression of VTC1-1 restores the ascorbic acid synthesis of a VTC1-1 mutant in Arabidopsis. In VTC1-1 RNAi plants, the ascorbic acid content of rice leaves decreases, and the ascorbic acid production induced by light is limited Oryza sativa Japonica Group
physiological function the overexpression of VTC1-3 restores the ascorbic acid synthesis of a VTC1-1 mutant in Arabidopsis. Isoform VTC1-3 RNAi lines alter ascorbic acid synthesis levels in rice roots, but not in the leaves or under the light/dark treatment Oryza sativa Japonica Group