3ZZL

Bacillus halodurans trp RNA-binding attenuation protein (TRAP): a 12- subunit assembly


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.67 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

How to Change the Oligomeric State of a Circular Protein Assembly: Switch from 11-Subunit to 12-Subunit Trap Suggests a General Mechanism

Chen, C.Smits, C.Dodson, G.G.Shevtsov, M.B.Merlino, N.Gollnick, P.Antson, A.A.

(2011) Plos One 6: 25296

  • DOI: 10.1371/journal.pone.0025296
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Many critical cellular functions are performed by multisubunit circular protein oligomers whose internal geometry has evolved to meet functional requirements. The subunit number is arguably the most critical parameter of a circular protein assembly, ...

    Many critical cellular functions are performed by multisubunit circular protein oligomers whose internal geometry has evolved to meet functional requirements. The subunit number is arguably the most critical parameter of a circular protein assembly, affecting the internal and external diameters of the assembly and often impacting on the protein's function. Although accurate structural information has been obtained for several circular proteins, a lack of accurate information on alternative oligomeric states has prevented engineering such transitions. In this study we used the bacterial transcription regulator TRAP as a model system to investigate the features that define the oligomeric state of a circular protein and to question how the subunit number could be manipulated.


    Organizational Affiliation

    York Structural Biology Laboratory, Department of Chemistry, University of York, York, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION ATTENUATION PROTEIN MTRB
A, B, C
70Bacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125)Mutation(s): 0 
Gene Names: mtrB
Find proteins for Q9KCC6 (Bacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125))
Go to UniProtKB:  Q9KCC6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRP
Query on TRP

Download SDF File 
Download CCD File 
A, B, C
TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.67 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.179 
  • Space Group: P 4 21 2
Unit Cell:
Length (Å)Angle (°)
a = 109.857α = 90.00
b = 109.857β = 90.00
c = 45.657γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-10-12
    Type: Initial release
  • Version 1.1: 2011-10-26
    Type: Database references