3QHE

Crystal structure of the complex between the armadillo repeat domain of adenomatous polyposis coli and the tyrosine-rich domain of Sam68


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 

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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:  
    3QHE, 3AU3

  • 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 of APC, which facilitates the binding of APC to various proteins ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Adenomatous polyposis coli protein AC337Homo sapiensMutation(s): 0 
Gene Names: APCDP2.5
Find proteins for P25054 (Homo sapiens)
Explore P25054 
Go to UniProtKB:  P25054
NIH Common Fund Data Resources
PHAROS:  P25054
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
KH domain-containing, RNA-binding, signal transduction-associated protein 1 BD55Homo sapiensMutation(s): 0 
Gene Names: KHDRBS1SAM68
Find proteins for Q07666 (Homo sapiens)
Explore Q07666 
Go to UniProtKB:  Q07666
NIH Common Fund Data Resources
PHAROS:  Q07666
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.223α = 90
b = 148.223β = 90
c = 63.379γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

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