1CGP

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 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

  • DOI: 10.1126/science.1653449
  • Primary Citation of Related Structures:  
    1CGP

  • 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 kinks that occur between TG/CA base pairs at positions 5 and 6 on each side of the dyad axis of the complex ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (CATABOLITE GENE ACTIVATOR PROTEIN (CAP))E [auth A], F [auth B]205Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0ACJ8 (Escherichia coli (strain K12))
Explore P0ACJ8 
Go to UniProtKB:  P0ACJ8
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*GP*CP*GP*AP*AP*AP*AP*GP*TP*GP*TP*GP*AP*CP*AP*TP*AP*T)-3')A [auth C], C [auth E]18synthetic construct
    Protein Feature View
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    • Reference Sequence
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*GP*TP*CP*AP*CP*AP*CP*TP*TP*TP*TP*CP*G)-3')B [auth D], D [auth F]13synthetic construct
      Protein Feature View
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      • Reference Sequence
      Small Molecules
      Ligands 1 Unique
      IDChainsName / Formula / InChI Key2D Diagram3D Interactions
      CMP (Subject of Investigation/LOI)
      Query on CMP

      Download Ideal Coordinates CCD File 
      G [auth A], H [auth B]ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE
      C10 H12 N5 O6 P
      IVOMOUWHDPKRLL-KQYNXXCUSA-N
       Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 3.00 Å
      • R-Value Work: 0.235 
      • Space Group: C 2 2 21
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 138α = 90
      b = 152.6β = 90
      c = 76γ = 90
      Software Package:
      Software NamePurpose
      X-PLORrefinement

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

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