8EDH

Identification of a class of WNK isoform-specific inhibitors through high-throughput screening

• PDB DOI: https://doi.org/10.2210/pdb8EDH/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2022-09-04 Released: 2023-03-01 
• Deposition Author(s): Akella, R., Goldsmith, E.J.
• Funding Organization(s): Cancer Prevention and Research Institute of Texas (CPRIT)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.11 Å
• R-Value Free: 0.291 
• R-Value Work: 0.186 

Literature

Identification of a Class of WNK Isoform-Specific Inhibitors Through High-Throughput Screening.

Chlebowicz, J., Akella, R., Humphreys, J.M., He, H., Kannangara, A.R., Wei, S., Posner, B., Goldsmith, E.J.

(2023) Drug Des Devel Ther 17: 93-105

• PubMed: 36712947 
• DOI: https://doi.org/10.2147/DDDT.S389461
• Primary Citation of Related Structures:  
  8EDH


• PubMed Abstract: 
  

  WNK [with no lysine (K)] kinases are serine/threonine kinases associated with familial hyperkalemic hypertension (FHHt). WNKs are therapeutic targets for blood pressure regulation, stroke and several cancers including triple negative breast cancer and glioblastoma. Here, we searched for and characterized novel WNK kinase inhibitors.

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Organizational Affiliation: 

Department of Biophysics, The University of Texas Southwestern Medical Center, Dallas, TX, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 67.63 kDa 
• Atom Count: 4,310 
• Modelled Residue Count: 516 
• Deposited Residue Count: 584 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase WNK3	A, B [auth C]	292	Homo sapiens	Mutation(s): 1  Gene Names: WNK3, KIAA1566, PRKWNK3 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BYP7 (Homo sapiens) Explore Q9BYP7  Go to UniProtKB:  Q9BYP7
PHAROS:  Q9BYP7 GTEx:  ENSG00000196632

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
WGK (Subject of Investigation/LOI)	C [auth A]	ethyl 1-(5,7-dimethoxy-4-methylquinolin-2-yl)piperidine-4-carboxylate C20 H26 N2 O4 QMSAXOQPCCJWDP-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.11 Å
• R-Value Free: 0.291 
• R-Value Work: 0.186 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.976	α = 90
b = 112.473	β = 100.268
c = 66.642	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-03-01 
Deposition Author(s): Akella, R., Goldsmith, E.J.

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Funding Organization	Location	Grant Number
Cancer Prevention and Research Institute of Texas (CPRIT)	United States	RP190421

Revision History  

• Version 1.0: 2023-03-01
  Type: Initial release
  
• Version 2.0: 2023-04-26
  Changes: Advisory, Atomic model, Database references, Derived calculations, Polymer sequence, Refinement description, Source and taxonomy, Structure summary
• Version 2.1: 2023-10-25
  Changes: Data collection, Refinement description