CATH Domain 2xswB00

CATH Classification

Level	CATH Code	Description
	3	Alpha Beta
	3.60	4-Layer Sandwich
	3.60.10	Deoxyribonuclease I; Chain A
	3.60.10.10	Endonuclease/exonuclease/phosphatase

Domain Context

CATH Clusters

Superfamily	Endonuclease/exonuclease/phosphatase
Functional Family	72 kDa inositol polyphosphate 5-phosphatase

Enzyme Information

3.1.3.36

Phosphoinositide 5-phosphatase.

based on mapping to UniProt Q9NRR6

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)

Q9NRR6

INP5E_HUMAN

Homo sapiens

72 kDa inositol polyphosphate 5-phosphatase

PDB Structure

PDB	2XSW
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism
Primary Citation	Crystal Structure of Human Inpp5E Tresaugues, L., Schutz, P., Arrowsmith, C.H., Berglund, H., Bountra, C., Collins, R., Edwards, A.M., Flodin, S., Flores, A., Graslund, S., Hammarstrom, M., Johansson, I., Karlberg, T., Kol, S., Kotenyova, T., Kouznetsova, E., Moche, M., Nyman, T., Persson, C., Schuler, H., Siponen, M.I., Thorsell, A.G., Van Der Berg, S., Wahlberg, E., Weigelt, J., Welin, M., Nordlund, P. To be Published