2YNO

yeast betaprime COP 1-304H6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular Basis for Recognition of Dilysine Trafficking Motifs by Copi.

Jackson, L.P.Lewis, M.Kent, H.M.Edeling, M.A.Evans, P.R.Duden, R.Owen, D.J.

(2012) Dev.Cell 23: 1255

  • DOI: 10.1016/j.devcel.2012.10.017
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • COPI mediates retrograde trafficking from the Golgi to the endoplasmic reticulum (ER) and within the Golgi stack, sorting transmembrane proteins bearing C-terminal KKxx or KxKxx motifs. The structure of KxKxx motifs bound to the N-terminal WD-repeat ...

    COPI mediates retrograde trafficking from the Golgi to the endoplasmic reticulum (ER) and within the Golgi stack, sorting transmembrane proteins bearing C-terminal KKxx or KxKxx motifs. The structure of KxKxx motifs bound to the N-terminal WD-repeat domain of β'-COP identifies electrostatic contacts between the motif and complementary patches at the center of the β'-COP propeller. An absolute requirement of a two-residue spacing between the terminal carboxylate group and first lysine residue results from interactions of carbonyl groups in the motif backbone with basic side chains of β'-COP. Similar interactions are proposed to mediate binding of KKxx motifs by the homologous α-COP domain. Mutation of key interacting residues in either domain or in their cognate motifs abolishes in vitro binding and results in mistrafficking of dilysine-containing cargo in yeast without compromising cell viability. Flexibility between β'-COP WD-repeat domains and the location of cargo binding have implications for COPI coat assembly.


    Organizational Affiliation

    Cambridge Institute for Medical Research, Department of Clinical Biochemistry, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK. lpj21@cam.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
COATOMER SUBUNIT BETA'
A, B
310Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: SEC27
Find proteins for P41811 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P41811
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
POLY ALA
P
5N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.188 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 171.560α = 90.00
b = 50.510β = 103.99
c = 74.470γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
iMOSFLMdata reduction
SCALAdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-12
    Type: Initial release
  • Version 1.1: 2012-12-26
    Type: Database references