2I1J

Moesin from Spodoptera frugiperda at 2.1 angstroms resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Self-masking in an Intact ERM-merlin Protein: An Active Role for the Central alpha-Helical Domain.

Li, Q.Nance, M.R.Kulikauskas, R.Nyberg, K.Fehon, R.Karplus, P.A.Bretscher, A.Tesmer, J.J.

(2007) J.Mol.Biol. 365: 1446-1459

  • DOI: 10.1016/j.jmb.2006.10.075
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Ezrin/radixin/moesin (ERM) family members provide a regulated link between the cortical actin cytoskeleton and the plasma membrane to govern membrane structure and organization. Here, we report the crystal structure of intact insect moesin, revealing ...

    Ezrin/radixin/moesin (ERM) family members provide a regulated link between the cortical actin cytoskeleton and the plasma membrane to govern membrane structure and organization. Here, we report the crystal structure of intact insect moesin, revealing that its essential yet previously uncharacterized alpha-helical domain forms extensive interactions with conserved surfaces of the band four-point-one/ezrin/radixin/moesin (FERM) domain. These interdomain contacts provide a functional explanation for how PIP(2) binding and tyrosine phosphorylation of ezrin lead to activation, and provide an understanding of previously enigmatic loss-of-function missense mutations in the tumor suppressor merlin. Sequence conservation and biochemical results indicate that this structure represents a complete model for the closed state of all ERM-merlin proteins, wherein the central alpha-helical domain is an active participant in an extensive set of inhibitory interactions that can be unmasked, in a rheostat-like manner, by coincident regulatory factors that help determine cell polarity and membrane structure.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, Institute for Cellular and Molecular Biology, The University of Texas at Austin 1 University Station #A5300, Austin, TX 78712-0165, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Moesin
A
575Spodoptera frugiperdaMutation(s): 0 
Find proteins for A0T1L9 (Spodoptera frugiperda)
Go to UniProtKB:  A0T1L9
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
URE
Query on URE

Download SDF File 
Download CCD File 
A
UREA
C H4 N2 O
XSQUKJJJFZCRTK-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.179 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 123.739α = 90.00
b = 123.739β = 90.00
c = 283.183γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data reduction
REFMACrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-12-19
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance