2IBL

Crystal structure of a helper molecule (HT-mf-thromb) based on mini-fibritin (mf) crystal structure (pdb:1OX3).

• PDB DOI: https://doi.org/10.2210/pdb2IBL/pdb

• Classification: CHAPERONE
• Organism(s): Tequatrovirus T4, Enterobacteria phage Ox2
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-09-11 Released: 2007-02-27 
• Deposition Author(s): Boudko, S.P., Rossmann, M.G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.32 Å
• R-Value Free: 0.170 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 

Literature

The Coiled-coil Domain Structure of the Sin Nombre Virus Nucleocapsid Protein.

Boudko, S.P., Kuhn, R.J., Rossmann, M.G.

(2007) J Mol Biol 366: 1538-1544

• PubMed: 17222867 
• DOI: https://doi.org/10.1016/j.jmb.2006.12.046
• Primary Citation of Related Structures:  
  2IBL, 2IC6, 2IC9


• PubMed Abstract: 
  

  Hantaviruses can cause hemorrhagic fever with a renal syndrome and hantavirus pulmonary syndrome when transmitted to humans. The nucleocapsid protein of hantaviruses encapsidates viral genomic RNA and associates with transcription and replication complexes. Both the amino and carboxy termini of the nucleocapsid protein had been predicted to form trimers prior to the formation of the ribonucleoprotein. Crystal structures of amino-terminal fragments of the nucleocapsid protein showed the formation of intramolecular antiparallel coiled coils, but not intermolecular trimers. Thus, the amino-terminal part of the nucleocapsid protein is probably insufficient to initiate the trimerization of the full-length molecule.

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Organizational Affiliation: 

Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-2054, USA.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 14.06 kDa 
• Atom Count: 1,050 
• Modelled Residue Count: 108 
• Deposited Residue Count: 130 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fibritin	A	130	Tequatrovirus T4, Enterobacteria phage Ox2 This entity is chimeric	Mutation(s): 0  Gene Names: wac
UniProt
Find proteins for Q38650 (Enterobacteria phage Ox2) Explore Q38650  Go to UniProtKB:  Q38650

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.32 Å
• R-Value Free: 0.170 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 
• Space Group: P 6₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 53.677	α = 90
b = 53.677	β = 90
c = 106.458	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-02-27 
Deposition Author(s): Boudko, S.P., Rossmann, M.G.

Revision History  

• Version 1.0: 2007-02-27
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2014-09-10
  Changes: Database references
• Version 1.4: 2017-06-14
  Changes: Database references, Source and taxonomy, Structure summary
• Version 1.5: 2023-08-30
  Changes: Data collection, Database references, Refinement description