3AJ4

Crystal structure of the PH domain of Evectin-2 from human complexed with O-phospho-L-serine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • R-Value Free: 0.126 
  • R-Value Work: 0.105 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Intracellular phosphatidylserine is essential for retrograde membrane traffic through endosomes

Uchida, Y.Hasegawa, J.Chinnapen, D.Inoue, T.Okazaki, S.Kato, R.Wakatsuki, S.Misaki, R.Koike, M.Uchiyama, Y.Iemura, S.Natsume, T.Kuwahara, R.Nakagawa, T.Nishikawa, K.Mukai, K.Miyoshi, E.Taniguchi, N.Sheff, D.Lencer, W.I.Taguchi, T.Arai, H.

(2011) Proc.Natl.Acad.Sci.USA 108: 15846-15851

  • DOI: 10.1073/pnas.1109101108

  • PubMed Abstract: 
  • Phosphatidylserine (PS) is a relatively minor constituent of biological membranes. Despite its low abundance, PS in the plasma membrane (PM) plays key roles in various phenomena such as the coagulation cascade, clearance of apoptotic cells, and recru ...

    Phosphatidylserine (PS) is a relatively minor constituent of biological membranes. Despite its low abundance, PS in the plasma membrane (PM) plays key roles in various phenomena such as the coagulation cascade, clearance of apoptotic cells, and recruitment of signaling molecules. PS also localizes in endocytic organelles, but how this relates to its cellular functions remains unknown. Here we report that PS is essential for retrograde membrane traffic at recycling endosomes (REs). PS was most concentrated in REs among intracellular organelles, and evectin-2 (evt-2), a protein of previously unknown function, was targeted to REs by the binding of its pleckstrin homology (PH) domain to PS. X-ray analysis supported the specificity of the binding of PS to the PH domain. Depletion of evt-2 or masking of intracellular PS suppressed membrane traffic from REs to the Golgi. These findings uncover the molecular basis that controls the RE-to-Golgi transport and identify a unique PH domain that specifically recognizes PS but not polyphosphoinositides.


    Organizational Affiliation

    Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pleckstrin homology domain-containing family B member 2
A, B
112Homo sapiensMutation(s): 0 
Gene Names: PLEKHB2 (EVT2)
Find proteins for Q96CS7 (Homo sapiens)
Go to Gene View: PLEKHB2
Go to UniProtKB:  Q96CS7
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SEP
Query on SEP

Download SDF File 
Download CCD File 
A
PHOSPHOSERINE
PHOSPHONOSERINE
C3 H8 N O6 P
BZQFBWGGLXLEPQ-REOHCLBHSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1 Å
  • R-Value Free: 0.126 
  • R-Value Work: 0.105 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 31.747α = 90.00
b = 48.449β = 92.20
c = 64.323γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
MOLREPphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-05-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-10-05
    Type: Database references