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Gene Protein Transcript Promoter Expression GO/PPI PubMed Cross reference

Gene information for IMPA1 (Homo sapiens)
(Information is obtained from NCBI Gene database)
Entrez gene ID3612
Official gene symbolIMPA1
Full nameinositol(myo)-1(or 4)-monophosphatase 1
Aliases,IMP,IMPA,
Gene summaryThis 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]
LocationChromosome: 8   Locus: 8q21.13-q21.3
Gene position82598589 - 82569151  Map Viewer
Gene orientationminus
Gene size29439 bp
Gene sequence
OMIM ID602064