1OM9

Structure of the GGA1-appendage in complex with the p56 binding peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for binding of accessory proteins by the appendage domain of GGAs

Collins, B.M.Praefcke, G.J.K.Robinson, M.S.Owen, D.J.

(2003) Nat.Struct.Mol.Biol. 10: 607-613

  • DOI: 10.1038/nsb955

  • PubMed Abstract: 
  • The Golgi-associated, gamma-adaptin-related, ADP-ribosylation-factor binding proteins (GGAs) and adaptor protein (AP)-1 are adaptors involved in clathrin-mediated transport between the trans-Golgi network and endosomal system. The appendage domains o ...

    The Golgi-associated, gamma-adaptin-related, ADP-ribosylation-factor binding proteins (GGAs) and adaptor protein (AP)-1 are adaptors involved in clathrin-mediated transport between the trans-Golgi network and endosomal system. The appendage domains of GGAs and the AP-1 gamma-adaptin subunit are structurally homologous and have been proposed to bind to accessory proteins via interaction with short sequences containing phenylalanines and acidic residues. Here we present the structure of the human GGA1 appendage in complex with its cognate binding peptide from the p56 accessory protein (DDDDFGGFEAAETFD) as determined by X-ray crystallography. The interaction is governed predominantly by packing of the first two phenylalanine residues of the peptide with conserved basic and hydrophobic residues from GGA1. Additionally, several main chain hydrogen bonds cause the peptide to form an additional beta-strand on the edge of the preexisting beta-sheet of the protein. Isothermal titration calorimetry was used to assess the affinities of different peptides for the GGA and gamma-appendage domains.


    Organizational Affiliation

    Cambridge Institute for Medical Research, Department of Clinical Biochemistry, University of Cambridge, Hills Road, Cambridge CB2 2XY, UK. bmc25@cam.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ADP-ribosylation factor binding protein GGA1
A, B
154Homo sapiensMutation(s): 0 
Gene Names: GGA1
Find proteins for Q9UJY5 (Homo sapiens)
Go to Gene View: GGA1
Go to UniProtKB:  Q9UJY5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
15-mer peptide fragment of p56
P, Q
15Homo sapiensMutation(s): 0 
Gene Names: CCDC91 (GGABP)
Find proteins for Q7Z6B0 (Homo sapiens)
Go to Gene View: CCDC91
Go to UniProtKB:  Q7Z6B0
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.213 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 61.414α = 90.00
b = 61.414β = 90.00
c = 145.008γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
REFMACrefinement
SCALAdata scaling
AMoREphasing
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-29
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance