2HQ4 | pdb_00002hq4

Crystal Structure of ORF 1580 a hypothetical protein from Pyrococcus horikoshii

• PDB DOI: https://doi.org/10.2210/pdb2HQ4/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Pyrococcus horikoshii
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-07-18 Released: 2006-09-19 
• Deposition Author(s): Li, Y., Marshall, M., Chang, J., Zhao, M., Zhang, M., Xu, H., Liu, Z.J., Rose, J.P., Wang, B.C., Southeast Collaboratory for Structural Genomics (SECSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 
  0.232 (Depositor) 
• R-Value Work: 
  0.195 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.197 (Depositor) 

Literature

Crystal Structure of ORF 1580 a hypothetical protein from Pyrococcus horikoshii

Li, Y., Marshall, M., Chang, J., Zhao, M., Zhang, M., Xu, H., LIU, Z.J., ROSE, J.P., Wang, B.C., Southeast Collaboratory for Structural Genomics (SECSG)

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: 38.68 kDa 
• Atom Count: 2,903 
• Modeled Residue Count: 317 
• Deposited Residue Count: 322 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypothetical protein PH1570	A, B	161	Pyrococcus horikoshii	Mutation(s): 0
UniProt
Find proteins for O59278 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3)) Explore O59278  Go to UniProtKB:  O59278

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free:  0.232 (Depositor) 
• R-Value Work:  0.195 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.197 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 133.869	α = 90
b = 46.392	β = 132.42
c = 94.75	γ = 90

Software Package:

Software Name	Purpose
Sca2Structure	model building
REFMAC	refinement
SERGUI	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
SCA2STRUCTURE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-09-19 
Deposition Author(s): Li, Y., Marshall, M., Chang, J., Zhao, M., Zhang, M., Xu, H., Liu, Z.J., Rose, J.P., Wang, B.C., Southeast Collaboratory for Structural Genomics (SECSG)

Revision History  

• Version 1.0: 2006-09-19
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-09-13
  Changes: Refinement description
• Version 1.4: 2024-03-06
  Changes: Data collection, Database references, Refinement description
• Version 1.5: 2024-10-30
  Changes: Structure summary
• Version 1.6: 2025-10-22
  Changes: Database references, Structure summary