CATH Classification

Domain Context

CATH Clusters

Superfamily Rho GTPase activation protein
Functional Family Putative inositol polyphosphate 5-phosphatase OCRL-1

Enzyme Information

3.1.3.36
Phosphoinositide 5-phosphatase.
based on mapping to UniProt Q01968
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H(2)O = 1-phosphatidyl- 1D-myo-inositol 4-phosphate + phosphate.
-!- These enzymes can also remove the 5-phosphate from Ins(1,4,5)P(3) and/or Ins(1,3,4,5)P(4). -!- They are a diverse family of enzymes, with differing abilities to catalyze two or more of the four reactions listed. -!- They are thought to use inositol lipids rather than inositol phosphates as substrates in vivo. -!- All of them can use either or both of PtdIns(4,5)P(2) and PtdIns(3,4,5)P(3) as substrates; this is the main property that distinguishes them from EC 3.1.3.56.

UniProtKB Entries (1)

Q01968
OCRL_HUMAN
Homo sapiens
Inositol polyphosphate 5-phosphatase OCRL-1

PDB Structure

PDB 2QV2
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
A role of the Lowe syndrome protein OCRL in early steps of the endocytic pathway
Erdmann, K.S., Mao, Y., McCrea, H.J., Zoncu, R., Lee, S., Paradise, S., Modregger, J., Biemesderfer, D., Toomre, D., De Camilli, P.
Dev.Cell
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