Biological Assembly 1  

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 80.29 kDa 
• Atom Count: 5,498 
• Modelled Residue Count: 690 
• Deposited Residue Count: 741 
• Unique protein chains: 1

 3IFV

Crystal structure of the Haloferax volcanii proliferating cell nuclear antigen

• PDB DOI: 10.2210/pdb3IFV/pdb

• Classification: REPLICATION
• Organism(s): Haloferax volcanii
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-07-26 Released: 2009-09-01 
• Deposition Author(s): Winter, J.A., Christofi, P., Morroll, S., Bunting, K.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.259 
• R-Value Work: 0.214 
• R-Value Observed: 0.217 

Literature

The crystal structure of Haloferax volcanii proliferating cell nuclear antigen reveals unique surface charge characteristics due to halophilic adaptation

Winter, J.A., Christofi, P., Morroll, S., Bunting, K.A.

(2009) BMC Struct Biol 9: 55-55

• PubMed: 19698123 
• DOI: 10.1186/1472-6807-9-55
• Primary Citation of Related Structures:  
  3IFV


• PubMed Abstract: 
  

The high intracellular salt concentration required to maintain a halophilic lifestyle poses challenges to haloarchaeal proteins that must stay soluble, stable and functional in this extreme environment. Proliferating cell nuclear antigen (PCNA) is a fundamental protein involved in maintaining genome integrity, with roles in both DNA replication and repair. To investigate the halophilic adaptation of such a key protein we have crystallised and solved the structure of Haloferax volcanii PCNA (HvPCNA) to a resolution of 2.0 A.

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Organizational Affiliation: 

Institute of Genetics, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PCNA	A, B, C	247	Haloferax volcanii	Mutation(s): 0  Gene Names: pcna, pcn, HVO_0175
UniProt
Find proteins for D0VWY8 (Haloferax volcanii) Explore D0VWY8  Go to UniProtKB:  D0VWY8

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA	D [auth A], E [auth A], F [auth A], G [auth B], H [auth B], I [auth B], J [auth C], K [auth C], L [auth C]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.259 
• R-Value Work: 0.214 
• R-Value Observed: 0.217 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.36	α = 90
b = 143.76	β = 121.56
c = 78.03	γ = 90

Software Package:

Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-09-01 
Deposition Author(s): Winter, J.A., Christofi, P., Morroll, S., Bunting, K.A.

Revision History  

• Version 1.0: 2009-09-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description