1LPE

THREE-DIMENSIONAL STRUCTURE OF THE LDL RECEPTOR-BINDING DOMAIN OF HUMAN APOLIPOPROTEIN E


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Work: 0.175 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Three-dimensional structure of the LDL receptor-binding domain of human apolipoprotein E.

Wilson, C.Wardell, M.R.Weisgraber, K.H.Mahley, R.W.Agard, D.A.

(1991) Science 252: 1817-1822


  • PubMed Abstract: 
  • Human apolipoprotein E, a blood plasma protein, mediates the transport and uptake of cholesterol and lipid by way of its high affinity interaction with different cellular receptors, including the low-density lipoprotein (LDL) receptor. The three-dime ...

    Human apolipoprotein E, a blood plasma protein, mediates the transport and uptake of cholesterol and lipid by way of its high affinity interaction with different cellular receptors, including the low-density lipoprotein (LDL) receptor. The three-dimensional structure of the LDL receptor-binding domain of apoE has been determined at 2.5 angstrom resolution by x-ray crystallography. The protein forms an unusually elongated (65 angstroms) four-helix bundle, with the helices apparently stabilized by a tightly packed hydrophobic core that includes leucine zipper-type interactions and by numerous salt bridges on the mostly charged surface. Basic amino acids important for LDL receptor binding are clustered into a surface patch on one long helix. This structure provides the basis for understanding the behavior of naturally occurring mutants that can lead to atherosclerosis.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Studies on the Amino-Terminal (Receptor-Binding) Domain of Human Apolipoprotein E3 from Serum Very Low Density Lipoproteins
      Aggerbeck, L.P.,Wetterau, J.R.,Weisgraber, K.H.,Mahley, R.W.,Agard, D.A.
      (1988) J.Mol.Biol. 202: 179


    Organizational Affiliation

    Howard Hughes Medical Institute, University of California, San Francisco 94143-0448.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
APOLIPOPROTEIN E3
A
144Homo sapiensMutation(s): 0 
Gene Names: APOE
Find proteins for P02649 (Homo sapiens)
Go to Gene View: APOE
Go to UniProtKB:  P02649
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Work: 0.175 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 40.650α = 90.00
b = 53.960β = 90.00
c = 85.430γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1992-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance