2HU2

CTBP/BARS in ternary complex with NAD(H) and RRTGAPPAL peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Specific Recognition of ZNF217 and Other Zinc Finger Proteins at a Surface Groove of C-Terminal Binding Proteins

Quinlan, K.G.R.Nardini, M.Verger, A.Francescato, P.Yaswen, P.Corda, D.Bolognesi, M.Crossley, M.

(2006) Mol.Cell.Biol. 26: 8159-8172

  • DOI: 10.1128/MCB.00680-06

  • PubMed Abstract: 
  • Numerous transcription factors recruit C-terminal binding protein (CtBP) corepressors. We show that the large zinc finger protein ZNF217 contacts CtBP. ZNF217 is encoded by an oncogene frequently amplified in tumors. ZNF217 contains a typical Pro-X-A ...

    Numerous transcription factors recruit C-terminal binding protein (CtBP) corepressors. We show that the large zinc finger protein ZNF217 contacts CtBP. ZNF217 is encoded by an oncogene frequently amplified in tumors. ZNF217 contains a typical Pro-X-Asp-Leu-Ser (PXDLS) motif that binds in CtBP's PXDLS-binding cleft. However, ZNF217 also contains a second motif, Arg-Arg-Thr (RRT), that binds a separate surface on CtBP. The crystal structure of CtBP bound to an RRTGAPPAL peptide shows that it contacts a surface crevice distinct from the PXDLS binding cleft. Interestingly, both PXDLS and RRT motifs are also found in other zinc finger proteins, such as RIZ. Finally, we show that ZNF217 represses several promoters, including one from a known CtBP target gene, and mutations preventing ZNF217's contact with CtBP reduce repression. These results identify a new CtBP interaction motif and establish ZNF217 as a transcriptional repressor protein that functions, at least in part, by associating with CtBP.


    Organizational Affiliation

    School of Molecular and Microbial Biosciences, University of Sydney, Sydney, NSW 2006, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-terminal-binding protein 1
A
358Rattus norvegicusMutation(s): 0 
Gene Names: Ctbp1
Find proteins for Q6AZ26 (Rattus norvegicus)
Go to UniProtKB:  Q6AZ26
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
9-mer peptide from Zinc finger protein 217
B
9Homo sapiensMutation(s): 1 
Gene Names: ZNF217 (ZABC1)
Find proteins for O75362 (Homo sapiens)
Go to Gene View: ZNF217
Go to UniProtKB:  O75362
Small Molecules
Ligands 2 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
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: 2.85 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.227 
  • Space Group: P 64 2 2
Unit Cell:
Length (Å)Angle (°)
a = 89.310α = 90.00
b = 89.310β = 90.00
c = 162.720γ = 120.00
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
CCP4data scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-10-31
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance