4LG6

Crystal structure of ANKRA2-CCDC8 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Ankyrin Repeats of ANKRA2 Recognize a PxLPxL Motif on the 3M Syndrome Protein CCDC8.

Nie, J.Xu, C.Jin, J.Aka, J.A.Tempel, W.Nguyen, V.You, L.Weist, R.Min, J.Pawson, T.Yang, X.J.

(2015) Structure 23: 700-712

  • DOI: 10.1016/j.str.2015.02.001
  • Primary Citation of Related Structures:  
    4LG6

  • PubMed Abstract: 
  • Peptide motifs are often used for protein-protein interactions. We have recently demonstrated that ankyrin repeats of ANKRA2 and the paralogous bare lymphocyte syndrome transcription factor RFXANK recognize PxLPxL/I motifs shared by megalin, three histone deacetylases, and RFX5 ...

    Peptide motifs are often used for protein-protein interactions. We have recently demonstrated that ankyrin repeats of ANKRA2 and the paralogous bare lymphocyte syndrome transcription factor RFXANK recognize PxLPxL/I motifs shared by megalin, three histone deacetylases, and RFX5. We show here that that CCDC8 is a major partner of ANKRA2 but not RFXANK in cells. The CCDC8 gene is mutated in 3M syndrome, a short-stature disorder with additional facial and skeletal abnormalities. Two other genes mutated in this syndrome encode CUL7 and OBSL1. While CUL7 is a ubiquitin ligase and OBSL1 associates with the cytoskeleton, little is known about CCDC8. Binding and structural analyses reveal that the ankyrin repeats of ANKRA2 recognize a PxLPxL motif at the C-terminal region of CCDC8. The N-terminal part interacts with OBSL1 to form a CUL7 ligase complex. These results link ANKRA2 unexpectedly to 3M syndrome and suggest novel regulatory mechanisms for histone deacetylases and RFX7.


    Organizational Affiliation

    The Rosalind & Morris Goodman Cancer Research Center, Department of Medicine, McGill University, Montréal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montréal, QC H3A 1A3, Canada; McGill University Health Center, Montréal, QC H3A 1A3, Canada. Electronic address: xiang-jiao.yang@mcgill.ca.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ankyrin repeat family A protein 2A173Homo sapiensMutation(s): 0 
Gene Names: ANKRA2ANKRA
Find proteins for Q9H9E1 (Homo sapiens)
Explore Q9H9E1 
Go to UniProtKB:  Q9H9E1
NIH Common Fund Data Resources
PHAROS  Q9H9E1
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Coiled-coil domain-containing protein 8B17Homo sapiensMutation(s): 0 
Gene Names: CCDC8
Find proteins for Q9H0W5 (Homo sapiens)
Explore Q9H0W5 
Go to UniProtKB:  Q9H0W5
NIH Common Fund Data Resources
PHAROS  Q9H0W5
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UNX
Query on UNX

Download CCD File 
A, B
UNKNOWN ATOM OR ION
X
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.726α = 90
b = 49.791β = 98.23
c = 41.243γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-25
    Type: Initial release
  • Version 1.1: 2015-03-18
    Changes: Database references
  • Version 1.2: 2015-04-29
    Changes: Database references