2ZSK

Crystal structure of PH1733, an aspartate racemase homologue, from Pyrococcus horikoshii OT3

• PDB DOI: https://doi.org/10.2210/pdb2ZSK/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Pyrococcus horikoshii OT3
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2008-09-12 Released: 2008-10-21 
• Deposition Author(s): Kita, A., Tasaki, S., Yohda, M., Miki, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.273 
• R-Value Work: 0.225 
• R-Value Observed: 0.228 

Starting Model: experimental

Literature

Crystal structure of PH1733, an aspartate racemase homologue, from pyrococcus horikoshii OT3

Kita, A., Tasaki, S., Yohda, M., Miki, K.

(2009) Proteins 74: 240-244

• PubMed: 18831039 
• DOI: https://doi.org/10.1002/prot.22244
• Primary Citation of Related Structures:  
  2ZSK

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Organizational Affiliation: 

Research Reactor Institute, Kyoto University, Kumatori-cho, Sannan-gun, Osaka 590-0494, Japan.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 51.89 kDa 
• Atom Count: 3,615 
• Modelled Residue Count: 452 
• Deposited Residue Count: 452 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
226aa long hypothetical aspartate racemase	A, B	226	Pyrococcus horikoshii OT3	Mutation(s): 0  Gene Names: PH1733
UniProt
Find proteins for O59384 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3)) Explore O59384  Go to UniProtKB:  O59384

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.273 
• R-Value Work: 0.225 
• R-Value Observed: 0.228 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.9	α = 90
b = 95.1	β = 90
c = 99.3	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-10-21 
Deposition Author(s): Kita, A., Tasaki, S., Yohda, M., Miki, K.

Revision History  

• Version 1.0: 2008-10-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Refinement description