1VC9

Crystal Structure of a T.thermophilus HB8 Ap6A hydrolase E50Q mutant-Mg2+-ATP complex

• PDB DOI:  https://doi.org/10.2210/pdb1VC9/pdb

• Classification: HYDROLASE
• Organism(s): Thermus thermophilus HB8
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2004-03-05 Released: 2005-04-26 
• Deposition Author(s): Iwai, T., Nakagawa, N., Kuramitsu, S., Masui, R., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.252 
• R-Value Work: 0.216 
• R-Value Observed: 0.216 

Literature

Crystal Structure of Nudix Protein Ndx1 from Thermus thermophilus HB8 in binary complex with diadenosine hexaphosphate

Iwai, T., Nakagawa, N., Kuramitsu, S., Masui, R.

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: 29.41 kDa 
• Atom Count: 2,184 
• Modelled Residue Count: 252 
• Deposited Residue Count: 252 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ndx1	A, B	126	Thermus thermophilus HB8	Mutation(s): 1  Gene Names: ndx1 EC: 3.6.1.61
UniProt
Find proteins for Q75UV1 (Thermus thermophilus) Explore Q75UV1  Go to UniProtKB:  Q75UV1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	D [auth A], E [auth B]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
ATP	Binding MOAD:  1VC9	Kd: 1.30e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.252 
• R-Value Work: 0.216 
• R-Value Observed: 0.216 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.9	α = 90
b = 55.121	β = 90
c = 113.869	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-04-26 
Deposition Author(s): Iwai, T., Nakagawa, N., Kuramitsu, S., Masui, R., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

Revision History  

• Version 1.0: 2005-04-26
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2021-11-10
  Changes: Database references, Derived calculations