2E5X | pdb_00002e5x

Structure of nucleotide triphosphate pyrophosphatase from pyrococcus horikoshii OT3

• PDB DOI: https://doi.org/10.2210/pdb2E5X/pdb

• Classification: HYDROLASE
• Organism(s): Pyrococcus horikoshii OT3
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-12-25 Released: 2007-06-26 
• Deposition Author(s): Mizutani, H., Lokanath, N.K., Kunishima, N., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 
  0.222 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.196 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.196 (Depositor) 

Starting Model: experimental

Literature

Structure of nucleotide triphosphate pyrophosphatase from pyrococcus horikoshii OT3

Mizutani, H., Lokanath, N.K., Kunishima, N.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 21.93 kDa 
• Atom Count: 1,729 
• Modeled Residue Count: 185 
• Deposited Residue Count: 186 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypothetical protein PH1917	A	186	Pyrococcus horikoshii OT3	Mutation(s): 1  EC: 3.6.1.19 (PDB Primary Data), 3.6.1.66 (UniProt)
UniProt
Find proteins for O59580 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3)) Explore O59580  Go to UniProtKB:  O59580

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ITT	E [auth A]	INOSINE 5'-TRIPHOSPHATE C10 H15 N4 O14 P3 HAEJPQIATWHALX-KQYNXXCUSA-N
EDO	F [auth A], G [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
NA	B [auth A], C [auth A], D [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.222 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.196 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.196 (Depositor) 

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.08	α = 90
b = 75.08	β = 90
c = 84.47	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-06-26 
Deposition Author(s): Mizutani, H., Lokanath, N.K., Kunishima, N., RIKEN Structural Genomics/Proteomics Initiative (RSGI)

Revision History  

• Version 1.0: 2007-06-26
  Type: Initial release
  
• Version 1.1: 2008-04-30
  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
• Version 1.4: 2023-10-25
  Changes: Data collection, Refinement description