1CGP

CATABOLITE GENE ACTIVATOR PROTEIN (CAP)/DNA COMPLEX + ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Work: 0.235 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of a CAP-DNA complex: the DNA is bent by 90 degrees.

Schultz, S.C.Shields, G.C.Steitz, T.A.

(1991) Science 253: 1001-1007


  • PubMed Abstract: 
  • The 3 angstrom resolution crystal structure of the Escherichia coli catabolite gene activator protein (CAP) complexed with a 30-base pair DNA sequence shows that the DNA is bent by 90 degrees. This bend results almost entirely from two 40 degrees kin ...

    The 3 angstrom resolution crystal structure of the Escherichia coli catabolite gene activator protein (CAP) complexed with a 30-base pair DNA sequence shows that the DNA is bent by 90 degrees. This bend results almost entirely from two 40 degrees kinks that occur between TG/CA base pairs at positions 5 and 6 on each side of the dyad axis of the complex. DNA sequence discrimination by CAP derives both from sequence-dependent distortion of the DNA helix and from direct hydrogen-bonding interactions between three protein side chains and the exposed edges of three base pairs in the major groove of the DNA. The structure of this transcription factor--DNA complex provides insights into possible mechanisms of transcription activation.


    Related Citations: 
    • Crystal Structure of a cAMP-Independent Form of Catabolite Gene Activator Protein with Adenosine Substituted in One of Two cAMP-Binding Sites
      Vaney, M.-C.,Gilliland, G.L.,Harman, J.G.,Peterkofsky, A.,Weber, I.T.
      (1989) Biochemistry 28: 4568


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06511.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (CATABOLITE GENE ACTIVATOR PROTEIN (CAP))
A, B
205Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: crp (cap, csm)
Find proteins for P0ACJ8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ACJ8
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*CP*GP*AP*AP*AP*AP*GP*TP*GP*TP*GP*AP*CP*AP*TP*AP*T)-3')C,E18synthetic construct
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*TP*CP*AP*CP*AP*CP*TP*TP*TP*TP*CP*G)-3')D,F13synthetic construct
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CMP
Query on CMP

Download SDF File 
Download CCD File 
A, B
ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE
CYCLIC AMP; CAMP
C10 H12 N5 O6 P
IVOMOUWHDPKRLL-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Work: 0.235 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 138.000α = 90.00
b = 152.600β = 90.00
c = 76.000γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-02-15
    Type: Source and taxonomy, Structure summary