CATH Classification

Domain Context

CATH Clusters

Superfamily Extracellular Endonuclease, subunit A
Functional Family ectonucleotide pyrophosphatase/phosphodiesterase family member 1

Enzyme Information

3.1.4.1
Phosphodiesterase I.
based on mapping to UniProt P06802
Hydrolytically removes 5'-nucleotides successively from the 3'-hydroxy termini of 3'-hydroxy-terminated oligonucleotides.
-!- Hydrolyzes both ribonucleotides and deoxyribonucleotides. -!- Has low activity toward polynucleotides. -!- A 3'-phosphate terminus on the substrate inhibits hydrolysis.
3.6.1.9
Nucleotide diphosphatase.
based on mapping to UniProt P06802
A nucleoside triphosphate + H(2)O = a nucleotide + diphosphate.
-!- The enzyme preferentially hydrolyzes ATP, but can also hydrolyze other nucleoside 5' triphosphates such as GTP, CTP, TTP and UTP to their corresponding monophosphates. -!- In vitro the enzyme also acts as a nucleotidohydrolase on ADP, NAD(+), NADP(+), FAD, and CoA. -!- Formerly EC 3.6.1.19.

UniProtKB Entries (1)

P06802
ENPP1_MOUSE
Mus musculus
Ectonucleotide pyrophosphatase/phosphodiesterase family member 1

PDB Structure

PDB 4B56
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of Npp1, an Ectonucleotide Pyrophosphatase/Phosphodiesterase Involved in Tissue Calcification.
Jansen, S., Perrakis, A., Ulens, C., Winkler, C., Andries, M., Joosten, R.P., Van Acker, M., Luyten, F.P., Moolenaar, W.H., Bollen, M.
Structure