Cloned (Comment) | Organism |
---|---|
genes IMPL2 and VTC4 | Arabidopsis thaliana |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
myo-inositol 3-phosphate + H2O | Arabidopsis thaliana | - |
myo-inositol + phosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arabidopsis thaliana | Q6NPM8 | IMPL2; ecotype Columbia-0, genes IMPL1, IMPL2, and VTC4 | - |
Arabidopsis thaliana | Q94F00 | IMPL1; ecotype Columbia-0, genes IMPL1, IMPL2, and VTC4 | - |
Arabidopsis thaliana | Q9M8S8 | VTC4; ecotype Columbia-0, genes IMPL1, IMPL2, and VTC4 | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cauline leaf | - |
Arabidopsis thaliana | - |
additional information | the tissue-specific expression patterns of IMP and VTC4 genes, IMPL1 GUS expression is observed in all tissues, IMPL2 GUS expression is comparatively strong in roots, but has little hypocotyl expression. Expression of genes VTC4, IMPL1, and IMPL2 during plant development, quantitative PCR, overview | Arabidopsis thaliana | - |
root | - |
Arabidopsis thaliana | - |
rosette leaf | - |
Arabidopsis thaliana | - |
stem | flowering | Arabidopsis thaliana | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
myo-inositol 3-phosphate + H2O | - |
Arabidopsis thaliana | myo-inositol + phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
IMP | - |
Arabidopsis thaliana |
myo-inositol monophosphatase | - |
Arabidopsis thaliana |
General Information | Comment | Organism |
---|---|---|
malfunction | the impl2 mutant has an embryo lethal phenotype, while the impl1 and vtc4 mutants do not | Arabidopsis thaliana |
metabolism | myo-inositol monophosphatase catalyzes the dephosphorylation of myo-inositol 3-phosphate in the last step of myo-inositol biosynthesis. Expression of IMP genes is correlated with expression of the gene for myo-inositol polyphosphate 1-phosphatase, which is involved in the myo-inositol salvage pathway, suggesting a possible salvage pathway role in seed development. Moreover, the partial rescue of the impl2 phenotype by histidine application implies that IMPL2 is also involved in histidine biosynthesis during embryo development | Arabidopsis thaliana |
physiological function | myo-inositol monophosphatase catalyzes the dephosphorylation of myo-inositol 3-phosphate in the last step of myo-inositol biosynthesis. Myo-inositol monophosphatase is also important in phosphate metabolism and is required for the biosynthesis of cell wall polysaccharides, phytic acid, and phosphatidylinositol | Arabidopsis thaliana |