4WOH

Structure of of human dual-specificity phosphatase 22 (E24A/K28A/K30A/C88S) complexed with 4-nitrophenolphosphate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.34 Å
  • R-Value Free: 0.165 
  • R-Value Work: 0.140 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural analysis of human dual-specificity phosphatase 22 complexed with a phosphotyrosine-like substrate.

Lountos, G.T.Cherry, S.Tropea, J.E.Waugh, D.S.

(2015) Acta Crystallogr.,Sect.F 71: 199-205

  • DOI: 10.1107/S2053230X15000217

  • PubMed Abstract: 
  • 4-Nitrophenyl phosphate (p-nitrophenyl phosphate, pNPP) is widely used as a small molecule phosphotyrosine-like substrate in activity assays for protein tyrosine phosphatases. It is a colorless substrate that upon hydrolysis is converted to a yellow ...

    4-Nitrophenyl phosphate (p-nitrophenyl phosphate, pNPP) is widely used as a small molecule phosphotyrosine-like substrate in activity assays for protein tyrosine phosphatases. It is a colorless substrate that upon hydrolysis is converted to a yellow 4-nitrophenolate ion that can be monitored by absorbance at 405 nm. Therefore, the pNPP assay has been widely adopted as a quick and simple method to assess phosphatase activity and is also commonly used in assays to screen for inhibitors. Here, the first crystal structure is presented of a dual-specificity phosphatase, human dual-specificity phosphatase 22 (DUSP22), in complex with pNPP. The structure illuminates the molecular basis for substrate binding and may also facilitate the structure-assisted development of DUSP22 inhibitors.


    Organizational Affiliation

    Basic Science Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dual specificity protein phosphatase 22
A
166Homo sapiensMutation(s): 4 
Gene Names: DUSP22 (JSP1, LMWDSP2, MKPX)
EC: 3.1.3.16, 3.1.3.48
Find proteins for Q9NRW4 (Homo sapiens)
Go to Gene View: DUSP22
Go to UniProtKB:  Q9NRW4
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download SDF File 
Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
4NP
Query on 4NP

Download SDF File 
Download CCD File 
A
4-NITROPHENYL PHOSPHATE
C6 H6 N O6 P
XZKIHKMTEMTJQX-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.34 Å
  • R-Value Free: 0.165 
  • R-Value Work: 0.140 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 89.816α = 90.00
b = 49.632β = 94.88
c = 39.899γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-02-18
    Type: Initial release
  • Version 1.1: 2015-03-04
    Type: Database references