1HL3

CtBP/BARS in ternary complex with NAD(H) and PIDLSKK peptide

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.256 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Ctbp/Bars: A Dual-Function Protein Involved in Transcription Co-Repression and Golgi Membrane Fission

Nardini, M., Spano, S., Cericola, C., Pesce, A., Massaro, A., Millo, E., Luini, A., Corda, D., Bolognesi, M.

(2003) Embo J. 22: 3122

  • DOI: 10.1093/emboj/cdg283
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • C-terminal-binding protein/brefeldin A-ADP ribosylated substrate (CtBP/BARS) plays key roles in development and oncogenesis as a transcription co-repressor, and in intracellular traffic as a promoter of Golgi membrane fission. Co-repressor activity i ...

    C-terminal-binding protein/brefeldin A-ADP ribosylated substrate (CtBP/BARS) plays key roles in development and oncogenesis as a transcription co-repressor, and in intracellular traffic as a promoter of Golgi membrane fission. Co-repressor activity is regulated by NAD(H) binding to CtBP/BARS, while membrane fission is associated with its acyl-CoA-dependent acyltransferase activity. Here, we report the crystal structures of rat CtBP/BARS in a binary complex with NAD(H), and in a ternary complex with a PIDLSKK peptide mimicking the consensus motif (PXDLS) recognized in CtBP/BARS cellular partners. The structural data show CtBP/BARS in a NAD(H)-bound dimeric form; the peptide binding maps the recognition site for DNA-binding proteins and histone deacetylases to an N-terminal region of the protein. The crystal structure together with the site-directed mutagenesis data and binding experiments suggest a rationale for the molecular mechanisms underlying the two fundamental co-existing, but diverse, activities supported by CtBP/BARS in the nucleus and in Golgi membranes.

    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Analysis of Brefeldin A-Adp Ribosylated Substrate (Bars)
      Nardini, M.,Spano, S.,Cericola, C.,Pesce, A.,Damonte, G.,Luini, A.,Corda, D.,Bolognesi, M.
      (2002) Acta Crystallogr.,Sect.D D58: 1068

    Organizational Affiliation: 

    Department of Physics-INFM, University of Genova, Via Dodecaneso 33, 16146 Genova, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-TERMINAL BINDING PROTEIN 3
A
358Rattus norvegicusMutation(s): 0 
Gene Names: Ctbp1 (Bars, Ctbp3)
EC: 1.1.1.-
Find proteins for Q9Z2F5 (Rattus norvegicus)
Go to UniProtKB:  Q9Z2F5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PRO-ILE-ASP-LEU-SER-LYS-LYS PEPTIDE
B
7N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAD
Query on NAD
Download SDF File 
Download CCD File 
A
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.256 
  • Space Group: P 64 2 2
Unit Cell:
Length (Å)Angle (°)
a = 84.811α = 90.00
b = 84.811β = 90.00
c = 159.719γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-06-19
    Type: Initial release
  • Version 1.1: 2016-12-21
    Type: Database references, Derived calculations, Non-polymer description, Other, Source and taxonomy, Structure summary, Version format compliance