4G69

Structure of the Human Discs Large 1 PDZ2 - Adenomatous Polyposis Coli Cytoskeletal Polarity Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.183 
  • R-Value Work: 0.171 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the Human Discs Large 1 PDZ2- Adenomatous Polyposis Coli Cytoskeletal Polarity Complex: Insight into Peptide Engagement and PDZ Clustering.

Slep, K.C.

(2012) Plos One 7: e50097-e50097

  • DOI: 10.1371/journal.pone.0050097

  • PubMed Abstract: 
  • The membrane associated guanylate kinase (MAGUK) family member, human Discs Large 1 (hDlg1) uses a PDZ domain array to interact with the polarity determinant, the Adenomatous Polyposis Coli (APC) microtubule plus end binding protein. The hDLG1-APC co ...

    The membrane associated guanylate kinase (MAGUK) family member, human Discs Large 1 (hDlg1) uses a PDZ domain array to interact with the polarity determinant, the Adenomatous Polyposis Coli (APC) microtubule plus end binding protein. The hDLG1-APC complex mediates a dynamic attachment between microtubule plus ends and polarized cortical determinants in epithelial cells, stem cells, and neuronal synapses. Using its multi-domain architecture, hDlg1 both scaffolds and regulates the polarity factors it engages. Molecular details underlying the hDlg1-APC interaction and insight into how the hDlg1 PDZ array may cluster and regulate its binding factors remain to be determined. Here, I present the crystal structure of the hDlg1 PDZ2-APC complex and the molecular determinants that mediate APC binding. The hDlg1 PDZ2-APC complex also provides insight into potential modes of ligand-dependent PDZ domain clustering that may parallel Dlg scaffold regulatory mechanisms. The hDlg1 PDZ2-APC complex presented here represents a core biological complex that bridges polarized cortical determinants with the dynamic microtubule cytoskeleton.


    Organizational Affiliation

    Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America. kslep@bio.unc.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Disks large homolog 1
A
100Homo sapiensGene Names: DLG1
Find proteins for Q12959 (Homo sapiens)
Go to Gene View: DLG1
Go to UniProtKB:  Q12959
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Adenomatous polyposis coli protein
B
11Homo sapiensGene Names: APC (DP2.5)
Find proteins for P25054 (Homo sapiens)
Go to Gene View: APC
Go to UniProtKB:  P25054
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.183 
  • R-Value Work: 0.171 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 27.109α = 90.00
b = 51.184β = 90.00
c = 71.756γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
Blu-Icedata collection
PHENIXmodel building
HKL-2000data reduction
PHENIXphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-07-18 
  • Released Date: 2012-12-12 
  • Deposition Author(s): Slep, K.C.

Revision History 

  • Version 1.0: 2012-12-12
    Type: Initial release
  • Version 1.1: 2017-11-15
    Type: Refinement description