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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2021-09-14 15:18:17 UTC
HMDB IDHMDB0001498
Secondary Accession Numbers
  • HMDB01498
Metabolite Identification
Common Namemyo-Inositol 1,4,5-trisphosphate
Descriptionmyo-Inositol 1,4,5-trisphosphate (CAS: 20298-95-7), also known as Ins(1,4,5)P3 or InsP3, is an intracellular messenger formed by the action of phospholipase C on phosphatidylinositol 4,5-bisphosphate, which is one of the phospholipids that make up the cell membrane (PMID: 22453946 ). It is released into the cytoplasm where it releases calcium ions from internal stores within the cell's endoplasmic reticulum. These calcium ions stimulate the activity of B kinase or calmodulin (PMID: 15189149 ). Its transient accumulation is due both to the enhanced metabolism via the Ca2+-calmodulin-sensitive Ins(1,4,5)P3 kinase, as well as a down-regulation of phosphatidylinositol 4,5-bisphosphate hydrolysis (PMID: 3041962 ). It is a major regulator of apoptotic signalling driving calcium (Ca2+) transients from the endoplasmic reticulum to mitochondria, thereby establishing a functional and physical link between these organelles. It also regulates autophagy through the interaction with Beclin 1 complex, and in particular, its inhibition/depletion strongly induces macroautophagy (PMID: 19325567 ). In addition, recent evidence suggests that the penetrating sperm delivers into mammalian eggs a novel isoform of phospholipase C (PLC), which promotes the formation of inositol 1,4,5-trisphosphate (PMID: 15362223 ).
Structure
Thumb
Synonyms
Chemical FormulaC6H15O15P3
Average Molecular Weight420.0956
Monoisotopic Molecular Weight419.962379346
IUPAC Name{[(1R,2S,3R,4R,5S,6R)-2,3,5-trihydroxy-4,6-bis(phosphonooxy)cyclohexyl]oxy}phosphonic acid
Traditional NameInsP3
CAS Registry Number85166-31-0
SMILES
O[C@@H]1[C@H](O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H](O)[C@@H]1OP(O)(O)=O
InChI Identifier
InChI=1S/C6H15O15P3/c7-1-2(8)5(20-23(13,14)15)6(21-24(16,17)18)3(9)4(1)19-22(10,11)12/h1-9H,(H2,10,11,12)(H2,13,14,15)(H2,16,17,18)/t1-,2+,3+,4-,5-,6-/m1/s1
InChI KeyMMWCIQZXVOZEGG-XJTPDSDZSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as inositol phosphates. Inositol phosphates are compounds containing a phosphate group attached to an inositol (or cyclohexanehexol) moiety.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassAlcohols and polyols
Direct ParentInositol phosphates
Alternative Parents
Substituents
  • Inositol phosphate
  • Monoalkyl phosphate
  • Cyclohexanol
  • Alkyl phosphate
  • Phosphoric acid ester
  • Organic phosphoric acid derivative
  • Secondary alcohol
  • Polyol
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Biological locationSource
Process
Naturally occurring process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
  • Nucleus
Biospecimen LocationsNot Available
Tissue Locations
  • Epidermis
  • Neuron
  • Pancreas
  • Platelet
  • Spleen
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB03401
Phenol Explorer Compound IDNot Available
FooDB IDFDB022657
KNApSAcK IDC00007460
Chemspider ID388562
KEGG Compound IDC01245
BioCyc IDINOSITOL-1-4-5-TRISPHOSPHATE
BiGG ID1485108
Wikipedia LinkInositol trisphosphate
METLIN ID6282
PubChem Compound439456
PDB IDNot Available
ChEBI ID16595
Food Biomarker OntologyNot Available
VMH IDMI145P
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceCooke, Allan M.; Potter, Barry V. L.; Gigg, Roy. Synthesis of DL-myo-inositol 1,4,5-trisphosphate. Tetrahedron Letters (1987), 28(20), 2305-8.
Material Safety Data Sheet (MSDS)Not Available
General References

Only showing the first 10 proteins. There are 25 proteins in total.

Enzymes

General function:
Involved in calcium ion binding
Specific function:
The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes.
Gene Name:
PLCB1
Uniprot ID:
Q9NQ66
Molecular weight:
138565.805
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in calcium ion binding
Specific function:
The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes. This form has a role in retina signal transduction.
Gene Name:
PLCB4
Uniprot ID:
Q15147
Molecular weight:
136105.065
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in calcium ion binding
Specific function:
The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes.
Gene Name:
PLCB2
Uniprot ID:
Q00722
Molecular weight:
134023.21
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in calcium ion binding
Specific function:
The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes.
Gene Name:
PLCB3
Uniprot ID:
Q01970
Molecular weight:
138797.725
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in phosphoinositide phospholipase C activity
Specific function:
The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes. It is a crucial enzyme in transmembrane signaling.
Gene Name:
PLCG2
Uniprot ID:
P16885
Molecular weight:
147868.67
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in calcium ion binding
Specific function:
Mediates the production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3). Plays an important role in the regulation of intracellular signaling cascades. Becomes activated in response to ligand-mediated activation of receptor-type tyrosine kinases, such as PDGFRA, PDGFRB, FGFR1, FGFR2, FGFR3 and FGFR4. Plays a role in actin reorganization and cell migration.
Gene Name:
PLCG1
Uniprot ID:
P19174
Molecular weight:
148658.92
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in calcium ion binding
Specific function:
The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes. Essential for trophoblast and placental development.
Gene Name:
PLCD1
Uniprot ID:
P51178
Molecular weight:
88134.23
Reactions
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + DG(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0)details
1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate + Water → myo-Inositol 1,4,5-trisphosphate + 1,2-Diacyl-sn-glyceroldetails
General function:
Involved in inositol or phosphatidylinositol phosphatase activity
Specific function:
Major isoenzyme hydrolyzing the calcium-mobilizing second messenger Ins(1,4,5)P3, this is a signal-terminating reaction.
Gene Name:
INPP5A
Uniprot ID:
Q14642
Molecular weight:
47819.155
Reactions
myo-Inositol 1,4,5-trisphosphate + Water → D-myo-Inositol 1,4-bisphosphate + Phosphatedetails
myo-Inositol 1,4,5-trisphosphate + Water → D-myo-Inositol 1,4-bisphosphate + Phosphatedetails
General function:
Involved in inositol or phosphatidylinositol phosphatase activity
Specific function:
Inositol 5-phosphatase, which converts inositol 1,4,5-trisphosphate to inositol 1,4-bisphosphate. Also converts phosphatidylinositol 4,5-bisphosphate to phosphatidylinositol 4-phosphate and inositol 1,3,4,5-tetrakisphosphate to inositol 1,3,4-trisphosphate in vitro. May be involved in modulation of the function of inositol and phosphatidylinositol polyphosphate-binding proteins that are present at membranes ruffles (By similarity).
Gene Name:
INPP5J
Uniprot ID:
Q15735
Molecular weight:
70238.575
Reactions
myo-Inositol 1,4,5-trisphosphate + Water → D-myo-Inositol 1,4-bisphosphate + Phosphatedetails
myo-Inositol 1,4,5-trisphosphate + Water → D-myo-Inositol 1,4-bisphosphate + Phosphatedetails
General function:
Involved in inositol or phosphatidylinositol phosphatase activity
Specific function:
Inositol 5-phosphatase which acts on inositol 1,4,5-trisphosphate, inositol 1,3,4,5-tetrakisphosphate, phosphatidylinositol 4,5-bisphosphate and phosphatidylinositol 3,4,5-trisphosphate. Has 6-fold higher affinity for phosphatidylinositol 4,5-bisphosphate than for inositol 1,4,5-trisphosphate. May negatively regulate assembly of the actin cytoskeleton.
Gene Name:
INPP5K
Uniprot ID:
Q9BT40
Molecular weight:
42783.425
Reactions
myo-Inositol 1,4,5-trisphosphate + Water → D-myo-Inositol 1,4-bisphosphate + Phosphatedetails
myo-Inositol 1,4,5-trisphosphate + Water → D-myo-Inositol 1,4-bisphosphate + Phosphatedetails

Only showing the first 10 proteins. There are 25 proteins in total.