5ONF

The ENTH domain from epsin-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.272 
  • R-Value Observed: 0.272 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Epsin and Sla2 form assemblies through phospholipid interfaces.

Garcia-Alai, M.M.Heidemann, J.Skruzny, M.Gieras, A.Mertens, H.D.T.Svergun, D.I.Kaksonen, M.Uetrecht, C.Meijers, R.

(2018) Nat Commun 9: 328-328

  • DOI: https://doi.org/10.1038/s41467-017-02443-x
  • Primary Citation of Related Structures:  
    5ON7, 5ONF, 5OO7, 6ENR

  • PubMed Abstract: 

    In clathrin-mediated endocytosis, adapter proteins assemble together with clathrin through interactions with specific lipids on the plasma membrane. However, the precise mechanism of adapter protein assembly at the cell membrane is still unknown. Here, we show that the membrane-proximal domains ENTH of epsin and ANTH of Sla2 form complexes through phosphatidylinositol 4,5-bisphosphate (PIP2) lipid interfaces. Native mass spectrometry reveals how ENTH and ANTH domains form assemblies by sharing PIP2 molecules. Furthermore, crystal structures of epsin Ent2 ENTH domain from S. cerevisiae in complex with PIP2 and Sla2 ANTH domain from C. thermophilum illustrate how allosteric phospholipid binding occurs. A comparison with human ENTH and ANTH domains reveal only the human ENTH domain can form a stable hexameric core in presence of PIP2, which could explain functional differences between fungal and human epsins. We propose a general phospholipid-driven multifaceted assembly mechanism tolerating different adapter protein compositions to induce endocytosis.


  • Organizational Affiliation

    European Molecular Biology Laboratory (EMBL), Hamburg Outstation, Notkestrasse 85, 22607, Hamburg, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Epsin-1
A, B, C
154Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: ENT1YDL161W
UniProt
Find proteins for Q12518 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q12518 
Go to UniProtKB:  Q12518
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ12518
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
MPD
Query on MPD

Download Ideal Coordinates CCD File 
D [auth A](4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.272 
  • R-Value Observed: 0.272 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.929α = 90
b = 119.363β = 90
c = 129.542γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-03-07
    Type: Initial release
  • Version 1.1: 2019-10-16
    Changes: Data collection