4YUQ

CDPK1 from Eimeria tenella in complex with inhibitor UW1354

• PDB DOI: https://doi.org/10.2210/pdb4YUQ/pdb

• Classification: Transferase/Transferase Inhibitor
• Organism(s): Eimeria tenella
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-03-19 Released: 2016-04-06 
• Deposition Author(s): Merritt, E.A.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.273 
• R-Value Work: 0.240 
• R-Value Observed: 0.242 

Starting Model: experimental

Literature

CDPK is a druggable target in the apicomplexan parasite Eimeria

Ojo, K.K., Vidadala, R., Maly, D.J., Van Voorhis, W.C., Merritt, E.A.

To be published.

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: 112.3 kDa 
• Atom Count: 7,403 
• Modelled Residue Count: 924 
• Deposited Residue Count: 982 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Calmodulin-like domain protein kinase	A, B	491	Eimeria tenella	Mutation(s): 0  EC: 2.7.11.1
UniProt
Find proteins for Q3HNM4 (Eimeria tenella) Explore Q3HNM4  Go to UniProtKB:  Q3HNM4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
KS1	G [auth A], L [auth B]	1-cyclopentyl-3-(1H-pyrrolo[2,3-b]pyridin-5-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine C17 H17 N7 NVRXTLZYXZNATH-UHFFFAOYSA-N
CA	C [auth A], D [auth A], E [auth A], F [auth A], H [auth B], I [auth B], J [auth B], K [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.273 
• R-Value Work: 0.240 
• R-Value Observed: 0.242 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.701	α = 90
b = 94.253	β = 93.06
c = 87.395	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2016-04-06 
Deposition Author(s): Merritt, E.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	AI089441

Revision History  

• Version 1.0: 2016-04-06
  Type: Initial release
  
• Version 1.1: 2017-09-20
  Changes: Author supporting evidence, Derived calculations
• Version 1.2: 2019-12-11
  Changes: Author supporting evidence
• Version 1.3: 2023-09-27
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-30
  Changes: Structure summary