INPP5B

Inositol polyphosphate-5-phosphatase, 75kDa

Rendering based on PDB 3MTC.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
SymbolsINPP5B ; 5PTase
External IDsOMIM: 147264 MGI: 103257 HomoloGene: 69021 IUPHAR: 1454 ChEMBL: 2636 GeneCards: INPP5B Gene
EC number3.1.3.36
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez363316330
EnsemblENSG00000204084ENSMUSG00000028894
UniProtP32019Q8K337
RefSeq (mRNA)NM_001297434NM_008385
RefSeq (protein)NP_001284363NP_032411
Location (UCSC)Chr 1:
38.33 – 38.41 Mb
Chr 4:
124.74 – 124.8 Mb
PubMed search

Type II inositol-1,4,5-trisphosphate 5-phosphatase is an enzyme that in humans is encoded by the INPP5B gene.[1][2]

Cellular calcium signaling is controlled by the production of inositol phosphates (IPs) by phospholipase C in response to extracellular signals. The IP signaling molecules are inactivated by a family of inositol polyphosphate-5-phosphatases (5-phosphatases). This gene encodes the type II 5-phosphatase. The protein is localized to the cytosol and mitochondria, and associates with membranes through an isoprenyl modification near the C-terminus. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined.[2]

References

  1. Ross TS, Jefferson AB, Mitchell CA, Majerus PW (Dec 1991). "Cloning and expression of human 75-kDa inositol polyphosphate-5-phosphatase". J Biol Chem 266 (30): 20283–9. PMID 1718960.
  2. 2.0 2.1 "Entrez Gene: INPP5B inositol polyphosphate-5-phosphatase, 75kDa".

Further reading