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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2006-08-12 23:08:41 UTC
Update Date2021-09-16 15:27:27 UTC
HMDB IDHMDB0003529
Secondary Accession Numbers
  • HMDB0006232
  • HMDB03529
  • HMDB06232
Metabolite Identification
Common Namemyo-Inositol 1,3,4,5,6-pentakisphosphate
Descriptionmyo-Inositol 1,3,4,5,6-pentakisphosphate, also known as Ins(1,3,4,5,6)P5 or inositol pentaphosphate, is an inositol polyphosphate of emerging significance in cellular signalling. Both Ins(1,3,4,5,6)P5 and its C-2 epimer scyllo-inositol pentakisphosphate (scyllo-InsP(5)) were synthesized from the same myo-inositol-based precursor (PMID: 16755629 ). InsP6, Ins(1,3,4,5,6)P5, and their close metabolic relatives are amongst the more abundant intracellular inositol polyphosphates. They are involved in chromatin organization, DNA maintenance, gene transcription, nuclear mRNA transport, membrane trafficking, and control of cell proliferation (PMID: 14992690 ).
Structure
Thumb
Synonyms
ValueSource
1D-myo-Inositol 1,3,4,5,6-pentakisphosphateChEBI
D-myo-Inositol 1,3,4,5,6-pentakisphosphateChEBI
1D-myo-Inositol 1,3,4,5,6-pentakisphosphoric acidGenerator
Inositol 1,3,4,5,6-pentakisphosphoric acidGenerator
D-myo-Inositol 1,3,4,5,6-pentakisphosphoric acidGenerator
Inositol 1,3,4,5,6-pentaphosphateHMDB
Inositol pentaphosphateHMDB
myo-Inositol 1,3,4,5,6-pentakis(phosphate)HMDB
myo-Inositol 1,3,4,5,6-pentaphosphateHMDB
myo-Inositol pentakisphosphateHMDB
I(1,3,4,5,6)P5HMDB
Inositol 1,3,4,5,6-pentakisphosphateHMDB
Ins(1,3,4,5,6)P5HMDB
myo-inositol 1,3,4,5,6-pentakisphosphateHMDB
Chemical FormulaC6H17O21P5
Average Molecular Weight580.0554
Monoisotopic Molecular Weight579.895040166
IUPAC Name{[(1R,2S,3r,4R,5S,6r)-3-hydroxy-2,4,5,6-tetrakis(phosphonooxy)cyclohexyl]oxy}phosphonic acid
Traditional Name[(1R,2S,3r,4R,5S,6r)-3-hydroxy-2,4,5,6-tetrakis(phosphonooxy)cyclohexyl]oxyphosphonic acid
CAS Registry Number20298-95-7
SMILES
O[C@@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O
InChI Identifier
InChI=1S/C6H17O21P5/c7-1-2(23-28(8,9)10)4(25-30(14,15)16)6(27-32(20,21)22)5(26-31(17,18)19)3(1)24-29(11,12)13/h1-7H,(H2,8,9,10)(H2,11,12,13)(H2,14,15,16)(H2,17,18,19)(H2,20,21,22)/t1-,2+,3-,4-,5+,6+
InChI KeyCTPQAXVNYGZUAJ-KXXVROSKSA-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
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Biological locationSource
Process
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-7.999Not Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
  • Nucleus
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB023187
KNApSAcK IDNot Available
Chemspider ID10333900
KEGG Compound IDC01284
BioCyc IDCPD-1107
BiGG ID37275
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID16322
Food Biomarker OntologyNot Available
VMH IDMI13456P
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Riley AM, Trusselle M, Kuad P, Borkovec M, Cho J, Choi JH, Qian X, Shears SB, Spiess B, Potter BV: scyllo-inositol pentakisphosphate as an analogue of myo-inositol 1,3,4,5,6-pentakisphosphate: chemical synthesis, physicochemistry and biological applications. Chembiochem. 2006 Jul;7(7):1114-22. [PubMed:16755629 ]
  2. Barker CJ, Wright J, Hughes PJ, Kirk CJ, Michell RH: Complex changes in cellular inositol phosphate complement accompany transit through the cell cycle. Biochem J. 2004 Jun 1;380(Pt 2):465-73. [PubMed:14992690 ]

Enzymes

General function:
Involved in inositol trisphosphate 3-kinase activity
Specific function:
Inositol phosphate kinase with a broad substrate specificity. Has a preference for inositol 1,4,5-trisphosphate (Ins(1,4,5)P3) and inositol 1,3,4,6-tetrakisphosphate (Ins(1,3,4,6)P4).
Gene Name:
IPMK
Uniprot ID:
Q8NFU5
Molecular weight:
47221.455
Reactions
Adenosine triphosphate + D-myo-Inositol 1,4,5,6-tetrakisphosphate → ADP + myo-Inositol 1,3,4,5,6-pentakisphosphatedetails
Adenosine triphosphate + myo-Inositol 1,4,5-trisphosphate → ADP + myo-Inositol 1,3,4,5,6-pentakisphosphatedetails
General function:
Involved in phosphotransferase activity, alcohol group as acceptor
Specific function:
Acts as a modulator of macrophage activation through control of glucose metabolism (By similarity).
Gene Name:
SHPK
Uniprot ID:
Q9UHJ6
Molecular weight:
51504.425
General function:
Involved in catalytic activity
Specific function:
Kinase that can phosphorylate various inositol polyphosphate such as Ins(3,4,5,6)P4 or Ins(1,3,4)P3. Phosphorylates Ins(3,4,5,6)P4 at position 1 to form Ins(1,3,4,5,6)P5. This reaction is thought to have regulatory importance, since Ins(3,4,5,6)P4 is an inhibitor of plasma membrane Ca(2+)-activated Cl(-) channels, while Ins(1,3,4,5,6)P5 is not. Also phosphorylates Ins(1,3,4)P3 on O-5 and O-6 to form Ins(1,3,4,6)P4, an essential molecule in the hexakisphosphate (InsP6) pathway. Also acts as an inositol polyphosphate phosphatase that dephosphorylate Ins(1,3,4,5)P4 and Ins(1,3,4,6)P4 to Ins(1,3,4)P3, and Ins(1,3,4,5,6)P5 to Ins(3,4,5,6)P4. May also act as an isomerase that interconverts the inositol tetrakisphosphate isomers Ins(1,3,4,5)P4 and Ins(1,3,4,6)P4 in the presence of ADP and magnesium. Probably acts as the rate-limiting enzyme of the InsP6 pathway. Modifies TNF-alpha-induced apoptosis by interfering with the activation of TNFRSF1A-associated death domain.
Gene Name:
ITPK1
Uniprot ID:
Q13572
Molecular weight:
45620.645
Reactions
Adenosine triphosphate + D-myo-Inositol 3,4,5,6-tetrakisphosphate → ADP + myo-Inositol 1,3,4,5,6-pentakisphosphatedetails
General function:
Involved in ATP binding
Specific function:
Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). InsP6 is involved in many processes such as mRNA export, non-homologous end-joining, endocytosis, ion channel regulation. It also protects cells from TNF-alpha-induced apoptosis.
Gene Name:
IPPK
Uniprot ID:
Q9H8X2
Molecular weight:
56016.12
Reactions
myo-Inositol hexakisphosphate + ADP → myo-Inositol 1,3,4,5,6-pentakisphosphate + Adenosine triphosphatedetails