1JOC

EEA1 homodimer of C-terminal FYVE domain bound to inositol 1,3-diphosphate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Multivalent endosome targeting by homodimeric EEA1.

Dumas, J.J.Merithew, E.Sudharshan, E.Rajamani, D.Hayes, S.Lawe, D.Corvera, S.Lambright, D.G.

(2001) Mol.Cell 8: 947-958


  • PubMed Abstract: 
  • Early endosome autoantigen localization to early endosomes is mediated by a C-terminal region, which includes a calmodulin binding motif, a Rab5 interaction site, and a FYVE domain that selectively binds phosphatidyl inositol 3-phosphate. The crystal ...

    Early endosome autoantigen localization to early endosomes is mediated by a C-terminal region, which includes a calmodulin binding motif, a Rab5 interaction site, and a FYVE domain that selectively binds phosphatidyl inositol 3-phosphate. The crystal structure of the C-terminal region bound to inositol 1,3-bisphosphate reveals an organized, quaternary assembly consisting of a parallel coiled coil and a dyad-symmetric FYVE domain homodimer. Structural and biochemical observations support a multivalent mechanism for endosomal localization in which domain organization, dimerization, and quaternary structure amplify the weak affinity and modest specificity of head group interactions with conserved residues. A unique mode of membrane engagement deduced from the quaternary structure of the C-terminal region provides insight into the structural basis of endosome tethering.


    Organizational Affiliation

    Program in Molecular Medicine and Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Early Endosomal Autoantigen 1
A, B
125Homo sapiensMutation(s): 0 
Gene Names: EEA1 (ZFYVE2)
Find proteins for Q15075 (Homo sapiens)
Go to Gene View: EEA1
Go to UniProtKB:  Q15075
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ITP
Query on ITP

Download SDF File 
Download CCD File 
A, B
PHOSPHORIC ACID MONO-(2,3,4,6-TETRAHYDROXY-5-PHOSPHONOOXY-CYCLOHEXYL) ESTER
INOSITOL 1,3-BISPHOSPHATE
C6 H14 O12 P2
PUVHMWJJTITUGO-FICORBCRSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ITPKd: 24000 nM BINDINGMOAD
ITPKd: 24000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.221 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 36.528α = 90.00
b = 85.096β = 90.00
c = 88.036γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
DENZOdata reduction
SCALEPACKdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-12-28
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance