3GQ2

Crystal Structure of the Dimer of the p115 Tether Globular Head Domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural and functional analysis of the globular head domain of p115 provides insight into membrane tethering.

An, Y.Chen, C.Y.Moyer, B.Rotkiewicz, P.Elsliger, M.A.Godzik, A.Wilson, I.A.Balch, W.E.

(2009) J.Mol.Biol. 391: 26-41

  • DOI: 10.1016/j.jmb.2009.04.062
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Molecular tethers have a central role in the organization of the complex membrane architecture of eukaryotic cells. p115 is a ubiquitous, essential tether involved in vesicle transport and the structural organization of the exocytic pathway. We descr ...

    Molecular tethers have a central role in the organization of the complex membrane architecture of eukaryotic cells. p115 is a ubiquitous, essential tether involved in vesicle transport and the structural organization of the exocytic pathway. We describe two crystal structures of the N-terminal domain of p115 at 2.0 A resolution. The p115 structures show a novel alpha-solenoid architecture constructed of 12 armadillo-like, tether-repeat, alpha-helical tripod motifs. We find that the H1 TR binds the Rab1 GTPase involved in endoplasmic reticulum to Golgi transport. Mutation of the H1 motif results in the dominant negative inhibition of endoplasmic reticulum to Golgi trafficking. We propose that the H1 helical tripod contributes to the assembly of Rab-dependent complexes responsible for the tether and SNARE-dependent fusion of membranes.


    Organizational Affiliation

    Department of Cell Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
General vesicular transport factor p115
A, B
651Bos taurusMutation(s): 0 
Gene Names: USO1 (VDP)
Find proteins for P41541 (Bos taurus)
Go to Gene View: USO1
Go to UniProtKB:  P41541
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.199 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 78.164α = 90.00
b = 159.817β = 115.13
c = 81.447γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
DENZOdata reduction
REFMACrefinement
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-11-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description