| Entrez gene ID | | 3612 |
| Official gene symbol | | IMPA1 |
| Full name | | inositol(myo)-1(or 4)-monophosphatase 1 |
| Aliases | | ,IMP,IMPA, |
| Gene summary | | This gene encodes an enyzme that dephosphorylates myo-inositol monophosphate to generate free myo-inositol, a precursor of phosphatidylinositol, and is therefore an important modulator of intracellular signal transduction via the production of the second messengers myoinositol 1,4,5-trisphosphate and diacylglycerol. This enzyme can also use myo-inositol-1,3-diphosphate, myo-inositol-1,4-diphosphate, scyllo-inositol-phosphate, glucose-1-phosphate, glucose-6-phosphate, fructose-1-phosphate, beta-glycerophosphate, and 2'-AMP as substrates. This enzyme shows magnesium-dependent phosphatase activity and is inhibited by therapeutic concentrations of lithium. Inhibition of inositol monophosphate hydroylosis and subsequent depletion of inositol for phosphatidylinositol synthesis may explain the anti-manic and anti-depressive effects of lithium administered to treat bipolar disorder. Alternative splicing results in multiple transcript variants encoding distinct isoforms. A pseudogene of this gene is also present on chromosome 8q21.13. [provided by RefSeq] |
| Location | | Chromosome: 8 Locus: 8q21.13-q21.3 |
| Gene position | | 82598589 - 82569151 Map Viewer |
| Gene orientation | | minus |
| Gene size | | 29439 bp |
| Gene sequence |
| |
| OMIM ID | | 602064 |
|