3GA0

CtBP1/BARS Gly172->Glu mutant structure: impairing NAD(H) binding and dimerization


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.334 
  • R-Value Work: 0.262 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

CtBP1/BARS Gly172-->Glu mutant structure: impairing NAD(H)-binding and dimerization

Nardini, M.Valente, C.Ricagno, S.Luini, A.Corda, D.Bolognesi, M.

(2009) Biochem.Biophys.Res.Commun. 381: 70-74

  • DOI: 10.1016/j.bbrc.2009.02.010

  • PubMed Abstract: 
  • C-terminal binding proteins (CtBPs) are multi-functional proteins involved in nuclear transcriptional co-repression, Golgi membrane fission, and synaptic ribbon formation. Binding of NAD(H) to CtBPs promotes dimerization. CtBP dimers act as a scaffol ...

    C-terminal binding proteins (CtBPs) are multi-functional proteins involved in nuclear transcriptional co-repression, Golgi membrane fission, and synaptic ribbon formation. Binding of NAD(H) to CtBPs promotes dimerization. CtBP dimers act as a scaffold for multimeric protein complex formation, thus bridging transcriptional repressors and their targets in the nucleus. Based on size-exclusion chromatography experiments and on the crystal structure of the NAD(H)-free G172E CtBP mutant, we show here that absence of NAD(H) induces flexibility/backbone conformational changes at the dimerization interface and at the CtBP interdomain region. The results presented shed first light on the correlation between NAD(H)-binding and functional CtBP dimerization.


    Organizational Affiliation

    Department of Biomolecular Sciences and Biotechnology, CNR-INFM and CIMAINA, University of Milano, Via Celoria 26, I-20133 Milano, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-terminal-binding protein 1
A
358Rattus norvegicusMutation(s): 1 
Gene Names: Ctbp1 (Bars, Ctbp3)
EC: 1.1.1.-
Find proteins for Q9Z2F5 (Rattus norvegicus)
Go to UniProtKB:  Q9Z2F5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMT
Query on FMT

Download SDF File 
Download CCD File 
A
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.334 
  • R-Value Work: 0.262 
  • Space Group: P 64 2 2
Unit Cell:
Length (Å)Angle (°)
a = 89.197α = 90.00
b = 89.197β = 90.00
c = 160.259γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-04-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance