6AY1

Crystal structure of a nucleoside diphosphate kinase NDK from Helicobacter pylori

• PDB DOI: https://doi.org/10.2210/pdb6AY1/pdb

• Classification: TRANSFERASE
• Organism(s): Helicobacter pylori
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-09-07 Released: 2017-09-20 
• Deposition Author(s): Edwards, T.E., Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.241 
• R-Value Work: 0.206 
• R-Value Observed: 0.207 

Literature

Crystal structure of a nucleoside diphosphate kinase NDK from Helicobacter pylori

Edwards, T.E., Dranow, D.M., Lorimer, D.D.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

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.

Biological Assembly 7  

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

Biological assembly 7 assigned by authors.

Biological Assembly 8  

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

Biological assembly 8 assigned by authors.

Macromolecule Content

• Total Structure Weight: 131.44 kDa 
• Atom Count: 8,136 
• Modelled Residue Count: 1,055 
• Deposited Residue Count: 1,160 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nucleoside diphosphate kinase	A, B, C, D, E, F, G, H	145	Helicobacter pylori	Mutation(s): 0  Gene Names: ndk, HPG27_182 EC: 2.7.4.6
UniProt
Find proteins for B5Z9W9 (Helicobacter pylori (strain G27)) Explore B5Z9W9  Go to UniProtKB:  B5Z9W9

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEZ	L [auth C], N [auth H]	HEXANE-1,6-DIOL C6 H14 O2 XXMIOPMDWAUFGU-UHFFFAOYSA-N
MPD	K [auth B], M [auth D]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
IPA	I [auth A], J [auth B]	ISOPROPYL ALCOHOL C3 H8 O KFZMGEQAYNKOFK-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.241 
• R-Value Work: 0.206 
• R-Value Observed: 0.207 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data: https://doi.org/10.18430/M36AY1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.19	α = 90
b = 93.4	β = 90
c = 208.49	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
MOLREP	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-09-20 
Deposition Author(s): Edwards, T.E., Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2017-09-20
  Type: Initial release
  
• Version 1.1: 2023-10-04
  Changes: Data collection, Database references, Refinement description