2HSG

Structure of transcription regulator CcpA in its DNA-free state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.337 
  • R-Value Work: 0.271 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of full-length transcription regulator CcpA in the apo form.

Loll, B.Saenger, W.Biesiadka, J.

(2007) Biochim.Biophys.Acta 1774: 732-736

  • DOI: 10.1016/j.bbapap.2007.03.020

  • PubMed Abstract: 
  • The catabolite control protein A (CcpA) from Bacillus megaterium is a member of the bacterial repressor protein family GalR-LacI. CcpA functions as master transcriptional regulator of carbon catabolite repression/regulation in firmicutes. Here we pre ...

    The catabolite control protein A (CcpA) from Bacillus megaterium is a member of the bacterial repressor protein family GalR-LacI. CcpA functions as master transcriptional regulator of carbon catabolite repression/regulation in firmicutes. Here we present the crystal structure of full-length apo CcpA at 2.5 A resolution from B. megaterium. The structure reveals the location of the helix-turn-helix domain as well as the hinge region, which were not visible due to their high flexibility in earlier crystallographic studies on CcpA molecules. The structure of the apo CcpA homodimer in the present form is in contrast to other reported structures for CcpA.


    Organizational Affiliation

    Institute for Chemistry and Biochemistry/Crystallography, Freie Universit├Ąt Berlin, Takustrasse 6, D-14195 Berlin, Germany. Bernard.Loll@mpimf-heidelberg.mpg.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glucose-resistance amylase regulator
A
332Bacillus megateriumGene Names: ccpA
Find proteins for P46828 (Bacillus megaterium)
Go to UniProtKB:  P46828
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.337 
  • R-Value Work: 0.271 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 74.464α = 90.00
b = 74.464β = 90.00
c = 238.923γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
REFMACrefinement
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-06-05
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance