6YXT

Crystal structure of the ADP-bound form of choline kinase from Plasmodium falciparum

• PDB DOI: https://doi.org/10.2210/pdb6YXT/pdb

• Classification: TRANSFERASE
• Organism(s): Plasmodium falciparum 3D7
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2020-05-03 Released: 2020-08-05 
• Deposition Author(s): Torretta, A., Parisini, E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.255 
• R-Value Work: 0.231 
• R-Value Observed: 0.232 

Starting Model: experimental

Literature

Crystal Structure of the Apo and the ADP-Bound Form of Choline Kinase from Plasmodium falciparum

Torretta, A., Lopez-Cara, L.C., Parisini, E.

(2020) Crystals (Basel) 

• DOI: https://doi.org/10.3390/cryst10070613

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 46 kDa 
• Atom Count: 3,165 
• Modelled Residue Count: 359 
• Deposited Residue Count: 382 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Choline kinase	A	382	Plasmodium falciparum 3D7	Mutation(s): 0  Gene Names: PF3D7_1401800 EC: 2.7.1.32
UniProt
Find proteins for Q8IM71 (Plasmodium falciparum (isolate 3D7)) Explore Q8IM71  Go to UniProtKB:  Q8IM71

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP (Subject of Investigation/LOI)	D [auth A]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
EDO	E [auth A], F [auth A], G [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
MG (Subject of Investigation/LOI)	B [auth A], C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.255 
• R-Value Work: 0.231 
• R-Value Observed: 0.232 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.45	α = 90
b = 68	β = 90
c = 105.11	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-08-05 
Deposition Author(s): Torretta, A., Parisini, E.

Revision History  

• Version 1.0: 2020-08-05
  Type: Initial release
  
• Version 1.1: 2024-01-24
  Changes: Data collection, Database references, Refinement description