1LE2

STRUCTURAL BASIS FOR ALTERED FUNCTION IN THE COMMON MUTANTS OF HUMAN APOLIPOPROTEIN-E


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Work: 0.195 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Salt bridge relay triggers defective LDL receptor binding by a mutant apolipoprotein.

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

(1994) Structure 2: 713-718

  • DOI: 10.1016/s0969-2126(00)00072-1
  • Primary Citation of Related Structures:  
    1LE2

  • PubMed Abstract: 
  • Apolipoprotein-E (apo-E), a 34kDa blood plasma protein, plays a key role in directing cholesterol transport via its interaction with the low density lipoprotein (LDL) receptor. The amino-terminal domain of apo-E forms an unusually elongated four-helix bundle arranged such that key basic residues involved in LDL receptor binding form a cluster at the end of one of the helices ...

    Apolipoprotein-E (apo-E), a 34kDa blood plasma protein, plays a key role in directing cholesterol transport via its interaction with the low density lipoprotein (LDL) receptor. The amino-terminal domain of apo-E forms an unusually elongated four-helix bundle arranged such that key basic residues involved in LDL receptor binding form a cluster at the end of one of the helices. A common apo-E variant, apo-E2, corresponding to the single-site substitution Arg158-->Cys, displays minimal LDL receptor binding and is associated with significant changes in plasma cholesterol levels and increased risk of coronary heart disease. Surprisingly, the site of mutation in this variant is physically well removed (> 12A) from the cluster of LDL receptor binding residues.


    Related Citations: 
    • 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
    • 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, Department of Biochemistry and Biophysics, University of California, San Francisco 94143-0448.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
APOLIPOPROTEIN E2A144Homo sapiensMutation(s): 0 
Gene Names: E2APOE
Find proteins for P02649 (Homo sapiens)
Explore P02649 
Go to UniProtKB:  P02649
NIH Common Fund Data Resources
PHAROS:  P02649
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Work: 0.195 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.06α = 90
b = 53.94β = 90
c = 83.91γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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