CATH Classification

Domain Context

CATH Clusters

Superfamily Janus/Ocnus
Functional Family 14 kDa phosphohistidine phosphatase

Enzyme Information

3.9.1.3
Phosphohistidine phosphatase.
based on mapping to UniProt Q9NRX4
A [protein]-N-phospho-L-histidine + H(2)O = a [protein]-L-histidine + phosphate.
-!- This eukaryotic enzyme dephosphorylates phosphorylated histidine residues within proteins and peptides. -!- The enzyme acts on phosphate groups attached to both the pros- and tele-nitrogen atoms, but the pros- position is somewhat preferred (by a factor of two at the most). -!- The substrate specificity depends on the amino acid sequence or structural context of the phosphohistidine in a phosphoprotein. -!- The enzyme is also active on free phosphoramidate and peptide-bound phospholysine.

UniProtKB Entries (1)

Q9NRX4
PHP14_HUMAN
Homo sapiens
14 kDa phosphohistidine phosphatase

PDB Structure

PDB 2OZW
External Links
Method SOLUTION NMR
Organism Escherichia
Primary Citation
Solution structure of phosphohistidine phosphatase 1 with phosphate ligand
Gong, W., Cui, G., Jin, C., Xia, B.
To be Published