1B8Z

HU FROM THERMOTOGA MARITIMA

• PDB DOI: https://doi.org/10.2210/pdb1B8Z/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-02-03 Released: 2000-02-03 
• Deposition Author(s): Christodoulou, E., Rypniewski, W.R., Vorgias, C.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.236 
• R-Value Work: 0.215 

Literature

Cloning, overproduction, purification and crystallization of the DNA binding protein HU from the hyperthermophilic eubacterium Thermotoga maritima.

Christodoulou, E., Vorgias, C.E.

(1998) Acta Crystallogr D Biol Crystallogr 54: 1043-1045

• PubMed: 9757133 
• DOI: https://doi.org/10.1107/s0907444998000341
• Primary Citation of Related Structures:  
  1B8Z


• PubMed Abstract: 
  

  The humar gene encoding for the histone-like DNA-binding protein HU from the hyperthermophilic eubacterium Thermotoga maritima was efficiently overexpressed in Escherichia coli under the T7 promoter. The HU protein was purified using SP-Sepharose ion-exchange and heparin-affinity chromatography and was successfully crystallized in ammonium sulfate. The crystals were grown in the tetragonal form in space group P43 or P41 and have unit-cell dimensions a = b = 46.12, c = 77.56 A, alpha = beta = gamma = 90 degrees. The crystals diffract X-rays to 1.6 A resolution using synchrotron radiation and are suitable for determination of the HU structure at high resolution.

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Organizational Affiliation: 

European Molecular Biology Laboratory, c/o DESY, Notkestrasse 85, 22603 Hamburg, Germany.

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: 20.04 kDa 
• Atom Count: 1,117 
• Modelled Residue Count: 134 
• Deposited Residue Count: 180 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (HISTONELIKE PROTEIN HU)	A, B	90	Thermotoga maritima	Mutation(s): 0
UniProt
Find proteins for P36206 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore P36206  Go to UniProtKB:  P36206

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.236 
• R-Value Work: 0.215 
• Space Group: P 4₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.12	α = 90
b = 46.12	β = 90
c = 77.56	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-02-03 
Deposition Author(s): Christodoulou, E., Rypniewski, W.R., Vorgias, C.E.

Revision History  

• Version 1.0: 2000-02-03
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-12-27
  Changes: Data collection, Database references