2IA0 | pdb_00002ia0

Transcriptional Regulatory Protein PF0864 From Pyrococcus Furiosus a Member of the ASNC Family (PF0864)

• PDB DOI: https://doi.org/10.2210/pdb2IA0/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Pyrococcus furiosus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-09-06 Released: 2006-10-31 
• Deposition Author(s): Yang, H., Chang, J., 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: 2.37 Å
• R-Value Free: 
  0.269 (Depositor), 0.263 (DCC) 
• R-Value Work: 
  0.205 (Depositor), 0.201 (DCC) 
• R-Value Observed: 
  0.208 (Depositor) 

Literature

Crystal Structure of the Transcriptional Regulatory Protein PF0864: an Asnc Family member from Pyrococcus Furiosus

Yang, H., Chang, J., Liu, Z.J., Rose, J.P., Wang, B.C., Southeast Collaboratory for Structural Genomics (SECSG)

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 and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 39.45 kDa 
• Atom Count: 2,572 
• Modeled Residue Count: 309 
• Deposited Residue Count: 342 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative HTH-type transcriptional regulator PF0864	A, B	171	Pyrococcus furiosus	Mutation(s): 0  Gene Names: PF0864
UniProt
Find proteins for Q8U2H1 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)) Explore Q8U2H1  Go to UniProtKB:  Q8U2H1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AU	C [auth A], D [auth B]	GOLD ION Au ZBKIUFWVEIBQRT-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.37 Å
• R-Value Free:  0.269 (Depositor), 0.263 (DCC) 
• R-Value Work:  0.205 (Depositor), 0.201 (DCC) 
• R-Value Observed: 0.208 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.074	α = 90
b = 70.372	β = 90
c = 96.536	γ = 90

Software Package:

Software Name	Purpose
SOLVE	phasing
CCP4	model building
REFMAC	refinement
SERGUI	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SCA2STRUCTURE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-10-31 
Deposition Author(s): Yang, H., Chang, J., Liu, Z.J., Rose, J.P., Wang, B.C., Southeast Collaboratory for Structural Genomics (SECSG)

Revision History  

• Version 1.0: 2006-10-31
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2017-10-18
  Changes: Advisory
• Version 1.4: 2024-02-21
  Changes: Advisory, Data collection, Database references, Derived calculations
• Version 1.5: 2025-10-22
  Changes: Database references, Structure summary