ITPK1 converts Ins-3,4,5,6-P4 to Ins-1,3,4,5,6-P5

Stable Identifier
R-HSA-994137
Type
Reaction [transition]
Species
Homo sapiens
Compartment
Locations in the PathwayBrowser
General
Click the image above or here to open this reaction in the Pathway Browser
The layout of this reaction may differ from that in the pathway view due to the constraints in pathway layout

Inositol-tetrakisphosphate 1-kinase (ITPK1) can phosphorylate inositol polyphosphates 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 Ca2+-activated Cl- channels.

Literature References
PubMed ID Title Journal Year
8662638 Isolation of inositol 1,3,4-trisphosphate 5/6-kinase, cDNA cloning and expression of the recombinant enzyme

Wilson, MP, Majerus, PW

J Biol Chem 1996
Participants
Participant Of
Catalyst Activity
Catalyst Activity
Title
inositol tetrakisphosphate 1-kinase activity of ITPK1 [cytosol]
Physical Entity
Activity
Orthologous Events
Cross References
Rhea
Authored
Reviewed
Created