3AU3

Crystal structure of armadillo repeat domain of APC


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal structures of the armadillo repeat domain of adenomatous polyposis coli and its complex with the tyrosine-rich domain of sam68

Morishita, E.C.Murayama, K.Kato-Murayama, M.Ishizuka-Katsura, Y.Tomabechi, Y.Hayashi, T.Terada, T.Handa, N.Shirouzu, M.Akiyama, T.Yokoyama, S.

(2011) Structure 19: 1496-1508

  • DOI: 10.1016/j.str.2011.07.013
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Adenomatous polyposis coli (APC) is a tumor suppressor protein commonly mutated in colorectal tumors. APC plays important roles in Wnt signaling and other cellular processes. Here, we present the crystal structure of the armadillo repeat (Arm) domain ...

    Adenomatous polyposis coli (APC) is a tumor suppressor protein commonly mutated in colorectal tumors. APC plays important roles in Wnt signaling and other cellular processes. Here, we present the crystal structure of the armadillo repeat (Arm) domain of APC, which facilitates the binding of APC to various proteins. APC-Arm forms a superhelix with a positively charged groove. We also determined the structure of the complex of APC-Arm with the tyrosine-rich (YY) domain of the Src-associated in mitosis, 68 kDa protein (Sam68), which regulates TCF-1 alternative splicing. Sam68-YY forms numerous interactions with the residues on the groove and is thereby fixed in a bent conformation. We assessed the effects of mutations and phosphorylation on complex formation between APC-Arm and Sam68-YY. Structural comparisons revealed different modes of ligand recognition between the Arm domains of APC and other Arm-containing proteins.


    Organizational Affiliation

    RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Adenomatous polyposis coli protein
A
344Homo sapiensMutation(s): 0 
Gene Names: APC (DP2.5)
Find proteins for P25054 (Homo sapiens)
Go to Gene View: APC
Go to UniProtKB:  P25054
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.204 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 114.327α = 90.00
b = 114.327β = 90.00
c = 61.821γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
CNSrefinement
HKL-2000data scaling
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-11-02
    Type: Initial release