Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 46.03 kDa 
• Atom Count: 2849 
• Residue Count: 351 
• Unique protein chains: 2

3TSZ

crystal structure of PDZ3-SH3-GUK core module from human ZO-1 in complex with 12mer peptide from human JAM-A cytoplasmic tail

• DOI: 10.2210/pdb3TSZ/pdb

• Classification: CELL ADHESION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2011-09-13 Released: 2011-10-12 
• Deposition Author(s): Nomme, J., Lavie, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.309 
• R-Value Work: 0.240 
• R-Value Observed: 0.247 

Literature

The Src Homology 3 Domain Is Required for Junctional Adhesion Molecule Binding to the Third PDZ Domain of the Scaffolding Protein ZO-1.

Nomme, J., Fanning, A.S., Caffrey, M., Lye, M.F., Anderson, J.M., Lavie, A.

(2011) J Biol Chem 286: 43352-43360

• PubMed: 22030391 
• DOI: 10.1074/jbc.M111.304089
• Primary Citation of Related Structures:  
  3TSZ, 3TSV, 3TSW


• PubMed Abstract: 
  

Tight junctions are cell-cell contacts that regulate the paracellular flux of solutes and prevent pathogen entry across cell layers. The assembly and permeability of this barrier are dependent on the zonula occludens (ZO) membrane-associated guanylate kinase (MAGUK) proteins ZO-1, -2, and -3. MAGUK proteins are characterized by a core motif of protein-binding domains that include a PDZ domain, a Src homology 3 (SH3) domain, and a region of homology to guanylate kinase (GUK); the structure of this core motif has never been determined for any MAGUK. To better understand how ZO proteins organize the assembly of protein complexes we have crystallized the entire PDZ3-SH3-GUK core motif of ZO-1. We have also crystallized this core motif in complex with the cytoplasmic tail of the ZO-1 PDZ3 ligand, junctional adhesion molecule A (JAM-A) to determine how the activity of different domains is coordinated. Our study shows a new feature for PDZ class II ligand binding that implicates the two highly conserved Phe(-2) and Ser(-3) residues of JAM. Our x-ray structures and NMR experiments also show for the first time a role for adjacent domains in the binding of ligands to PDZ domains in the MAGUK proteins family.

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Organizational Affiliation: 

Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, Illinois 60607, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tight junction protein ZO-1	A	391	Homo sapiens	Mutation(s): 0  Gene Names: TJP1, ZO1
Find proteins for Q07157 (Homo sapiens) Explore Q07157  Go to UniProtKB:  Q07157
NIH Common Fund Data Resources
PHAROS:  Q07157 GTEx:  ENSG00000104067

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Junctional adhesion molecule A	B	12	Homo sapiens	Mutation(s): 0  Gene Names: F11R, JAM1, JCAM, UNQ264/PRO301
Find proteins for Q9Y624 (Homo sapiens) Explore Q9Y624  Go to UniProtKB:  Q9Y624
NIH Common Fund Data Resources
PHAROS:  Q9Y624 GTEx:  ENSG00000158769

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.309 
• R-Value Work: 0.240 
• R-Value Observed: 0.247 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.5	α = 90
b = 49.7	β = 101.1
c = 91.8	γ = 90

Software Package:

Software Name	Purpose
SERGUI	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-09-13 
• Released Date: 2011-10-12 
Deposition Author(s): Nomme, J., Lavie, A.

Revision History 

• Version 1.0: 2011-10-12
  Type: Initial release
  
• Version 1.1: 2011-11-16
  Changes: Database references
• Version 1.2: 2011-12-28
  Changes: Database references