9OK9 | pdb_00009ok9

Crystal structure of an MKP5 allosteric loop mutant, P447V, in complex with an allosteric inhibitor

• PDB DOI: https://doi.org/10.2210/pdb9OK9/pdb

• Classification: HYDROLASE/INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2025-05-09 Released: 2025-07-30 
• Deposition Author(s): Manjula, R., Bennett, A.M., Lolis, E.
• Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 
  0.239 (Depositor), 0.242 (DCC) 
• R-Value Work: 
  0.195 (Depositor), 0.199 (DCC) 
• R-Value Observed: 
  0.197 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of an MKP5 allosteric loop mutant, S446G, in complex with an allosteric inhibitor

Manjula, R., Bennett, A.M., Lolis, E.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: equilibrium centrifugation

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 assigned by authors.

Biological Assembly 4  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 4 assigned by authors.

Biological Assembly 5  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 5 assigned by authors.

Biological Assembly 6  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 6 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 105.21 kDa 
• Atom Count: 7,231 
• Modeled Residue Count: 884 
• Deposited Residue Count: 894 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dual specificity protein phosphatase 10	A, B, C, D, E, F	149	Homo sapiens	Mutation(s): 1  Gene Names: DUSP10, MKP5 EC: 3.1.3.16 (PDB Primary Data), 3.1.3.48 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y6W6 (Homo sapiens) Explore Q9Y6W6  Go to UniProtKB:  Q9Y6W6
PHAROS:  Q9Y6W6 GTEx:  ENSG00000143507

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CJA (Subject of Investigation/LOI)	G [auth A], H [auth B], I [auth C], J [auth D], K [auth E], L [auth F]	3,3-dimethyl-1-{[9-(methylsulfanyl)-5,6-dihydrothieno[3,4-h]quinazolin-2-yl]sulfanyl}butan-2-one C17 H20 N2 O S3 ZVUPMFXOKKTVQT-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free:  0.239 (Depositor), 0.242 (DCC) 
• R-Value Work:  0.195 (Depositor), 0.199 (DCC) 
• R-Value Observed: 0.197 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 92.74	α = 90
b = 98.252	β = 90
c = 136.985	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-07-30 
Deposition Author(s): Manjula, R., Bennett, A.M., Lolis, E.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)	United States	RO1 HL158876

Revision History  

• Version 1.0: 2025-07-30
  Type: Initial release