Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-19 04:28:51 UTC
Update Date2024-04-30 19:56:23 UTC
Metabolite IDMMDBc0032957
Metabolite Identification
Common NameInositol 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
Synonyms
ValueSource
1,4,5-Insp3ChEBI
D-Myo-inositol 1,4,5-trisphosphateChEBI
D-MYO-inositol-1,4,5-triphosphATEChEBI
Ins(1,4,5)P3ChEBI
InsP3ChEBI
IP3ChEBI
1D-Myo-inositol 1,4,5-trisphosphateKegg
D-Myo-inositol 1,4,5-trisphosphoric acidGenerator
D-MYO-inositol-1,4,5-triphosphoric acidGenerator
1D-Myo-inositol 1,4,5-trisphosphoric acidGenerator
Inositol 1,4,5-trisphosphoric acidGenerator
Myo-inositol 1,4,5-trisphosphateHMDB
1,4,5-IP3HMDB
Inositol 1,4,5-triphosphateHMDB
Myoinositol 1,4,5-triphosphateHMDB
D-myo-Inositol 1,4,5-triphosphateHMDB
IP 3HMDB
Inositol 1,4,5-trisphosphateHMDB
Inositol triphosphateHMDB
Inositol trisphosphateHMDB
TriphosphoinositolHMDB
myo-Inositol 1,4,5-triphosphateHMDB
myo-Inositol triphosphateHMDB
myo-Inositol trisphosphateHMDB
Molecular FormulaC6H15O15P3
Average Mass420.0956
Monoisotopic Mass419.962379346
IUPAC Name{[(1R,2S,3R,4R,5S,6R)-2,3,5-trihydroxy-4,6-bis(phosphonooxy)cyclohexyl]oxy}phosphonic acid
Traditional NameInsP3
CAS Registry Number88269-39-0
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