4N5A

Crystal structure of Efr3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into assembly and regulation of the plasma membrane phosphatidylinositol 4-kinase complex.

Wu, X.Chi, R.J.Baskin, J.M.Lucast, L.Burd, C.G.De Camilli, P.Reinisch, K.M.

(2014) Dev Cell 28: 19-29

  • DOI: 10.1016/j.devcel.2013.11.012
  • Primary Citation of Related Structures:  
    4N5C, 4N5A

  • PubMed Abstract: 
  • Plasma membrane PI4P helps determine the identity of this membrane and plays a key role in signal transduction as the precursor of PI(4,5)P2 and its metabolites. Here, we report the atomic structure of the protein scaffold that is required for the pl ...

    Plasma membrane PI4P helps determine the identity of this membrane and plays a key role in signal transduction as the precursor of PI(4,5)P2 and its metabolites. Here, we report the atomic structure of the protein scaffold that is required for the plasma membrane localization and function of Stt4/PI4KIIIα, the PI 4-kinase responsible for this PI4P pool. Both proteins of the scaffold, Efr3 and YPP1/TTC7, are composed of α-helical repeats, which are arranged into a rod in Efr3 and a superhelix in Ypp1. A conserved basic patch in Efr3, which binds acidic phospholipids, anchors the complex to the plasma membrane. Stt4/PI4KIIIα is recruited by interacting with the Ypp1 C-terminal lobe, which also binds to unstructured regions in the Efr3 C terminus. Phosphorylation of this Efr3 region counteracts Ypp1 binding, thus providing a mechanism through which Stt4/PI4KIIIα recruitment, and thus a metabolic reaction of fundamental importance in cell physiology, can be regulated.


    Organizational Affiliation

    Department of Cell Biology, Yale School of Medicine, New Haven, CT 06520, USA. Electronic address: karin.reinisch@yale.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein EFR3A557Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: EFR3YMR212CYM8261.06C
Find proteins for Q03653 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q03653 
Go to UniProtKB:  Q03653
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.232 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 136.374α = 90
b = 136.374β = 90
c = 141.143γ = 120
Software Package:
Software NamePurpose
CBASSdata collection
SHARPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-03-19
    Changes: Database references