PP-IP4 is dephosphorylated to I(1,3,4,5,6)P5 by NUDT4 in the cytosol

Stable Identifier
R-HSA-1855166
Type
Reaction [transition]
Species
Homo sapiens
Compartment
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Diphosphoinositol polyphosphate phosphohydrolase 2, also known as nucleoside diphosphate-linked moiety X motif 4 (NUDT4), dephosphorylates diphospho- tetrakisphosphate (PP-IP4) to inositol 1,3,4,5,6-pentakisphosphate (I(1,3,4,5,6)P5). The products made are: inositol 5-diphospho-1,3,4,6-tetrakisphosphate (5-PP-IP4); inositol 1-diphospho-3,4,5,6-tetrakisphosphate (1-PP-IP4); and inositol 3-diphospho-1,4,5,6-tetrakisphosphate (3-PP-IP4).

The following lists the above protein with its corresponding literature references: NUDT4 (Saiardi et al. 2001, Saiardi et al. 2000).

Literature References
PubMed ID Title Journal Year
11502751 Identification and characterization of a novel inositol hexakisphosphate kinase

Saiardi, A, Nagata, E, Luo, HR, Snowman, AM, Snyder, SH

J Biol Chem 2001
10827188 The inositol hexakisphosphate kinase family. Catalytic flexibility and function in yeast vacuole biogenesis

Saiardi, A, Caffrey, JJ, Snyder, SH, Shears, SB

J Biol Chem 2000
Participants
Participant Of
Catalyst Activity
Catalyst Activity
Title
inositol diphosphate tetrakisphosphate diphosphatase activity of NUDT4:Mg2+/Mn2+ [cytosol]
Physical Entity
Activity
Orthologous Events
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