1XDT

COMPLEX OF DIPHTHERIA TOXIN AND HEPARIN-BINDING EPIDERMAL GROWTH FACTOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the complex of diphtheria toxin with an extracellular fragment of its receptor.

Louie, G.V.Yang, W.Bowman, M.E.Choe, S.

(1997) Mol.Cell 1: 67-78


  • PubMed Abstract: 
  • We describe the crystal structure at 2.65 A resolution of diphtheria toxin (DT) complexed 1:1 with a fragment of its cell-surface receptor, the precursor of heparin-binding epidermal-growth-factor-like growth factor (HBEGF). HBEGF in the complex has ...

    We describe the crystal structure at 2.65 A resolution of diphtheria toxin (DT) complexed 1:1 with a fragment of its cell-surface receptor, the precursor of heparin-binding epidermal-growth-factor-like growth factor (HBEGF). HBEGF in the complex has the typical EGF-like fold and packs its principal beta hairpin against the face of a beta sheet in the receptor-binding domain of DT. The interface has a predominantly hydrophobic core, and polar interactions are formed at the periphery. The structure of the complex suggests that part of the membrane anchor of the receptor can interact with a hinge region of DT. The toxin molecule is thereby induced to form an open conformation conducive to membrane insertion. The structure provides a basis for altering the binding specificity of the toxin, and may also serve as a model for other EGF-receptor interactions.


    Organizational Affiliation

    Structural Biology Laboratory, Salk Institute for Biological Studies, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DIPHTHERIA TOXIN
T
535Corynephage betaMutation(s): 0 
Find proteins for P00588 (Corynephage beta)
Go to UniProtKB:  P00588
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HEPARIN-BINDING EPIDERMAL GROWTH FACTOR
R
79Homo sapiensMutation(s): 0 
Gene Names: HBEGF (DTR, DTS, HEGFL)
Find proteins for Q99075 (Homo sapiens)
Go to Gene View: HBEGF
Go to UniProtKB:  Q99075
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.172 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 89.400α = 90.00
b = 103.700β = 90.00
c = 127.700γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-02-25
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance