2OBD

Crystal Structure of Cholesteryl Ester Transfer Protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Crystal structure of cholesteryl ester transfer protein reveals a long tunnel and four bound lipid molecules.

Qiu, X.Mistry, A.Ammirati, M.J.Chrunyk, B.A.Clark, R.W.Cong, Y.Culp, J.S.Danley, D.E.Freeman, T.B.Geoghegan, K.F.Griffor, M.C.Hawrylik, S.J.Hayward, C.M.Hensley, P.Hoth, L.R.Karam, G.A.Lira, M.E.Lloyd, D.B.McGrath, K.M.Stutzman-Engwall, K.J.Subashi, A.K.Subashi, T.A.Thompson, J.F.Wang, I.K.Zhao, H.Seddon, A.P.

(2007) Nat.Struct.Mol.Biol. 14: 106-113

  • DOI: 10.1038/nsmb1197
  • Also Cited By: 4EWS

  • PubMed Abstract: 
  • Cholesteryl ester transfer protein (CETP) shuttles various lipids between lipoproteins, resulting in the net transfer of cholesteryl esters from atheroprotective, high-density lipoproteins (HDL) to atherogenic, lower-density species. Inhibition of CE ...

    Cholesteryl ester transfer protein (CETP) shuttles various lipids between lipoproteins, resulting in the net transfer of cholesteryl esters from atheroprotective, high-density lipoproteins (HDL) to atherogenic, lower-density species. Inhibition of CETP raises HDL cholesterol and may potentially be used to treat cardiovascular disease. Here we describe the structure of CETP at 2.2-A resolution, revealing a 60-A-long tunnel filled with two hydrophobic cholesteryl esters and plugged by an amphiphilic phosphatidylcholine at each end. The two tunnel openings are large enough to allow lipid access, which is aided by a flexible helix and possibly also by a mobile flap. The curvature of the concave surface of CETP matches the radius of curvature of HDL particles, and potential conformational changes may occur to accommodate larger lipoprotein particles. Point mutations blocking the middle of the tunnel abolish lipid-transfer activities, suggesting that neutral lipids pass through this continuous tunnel.


    Organizational Affiliation

    Pfizer Global Research and Development, Eastern Point Road, Groton, Connecticut 06430, USA. xiayang.qiu@pfizer.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cholesteryl ester transfer protein
A
476Homo sapiensMutations: I405V, D240N, A131C, D88N, A1C, D341N
Gene Names: CETP
Find proteins for P11597 (Homo sapiens)
Go to Gene View: CETP
Go to UniProtKB:  P11597
Small Molecules
Ligands 9 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

Download SDF File 
Download CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
HEPES
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
FUC
Query on FUC

Download SDF File 
Download CCD File 
A
ALPHA-L-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
 Ligand Interaction
PG4
Query on PG4

Download SDF File 
Download CCD File 
A
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
NDG
Query on NDG

Download SDF File 
Download CCD File 
A
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
2OB
Query on 2OB

Download SDF File 
Download CCD File 
A
CHOLESTERYL OLEATE
(3BETA,9BETA,14BETA,17ALPHA)-CHOLEST-5-EN-3-YL (9Z)-OCTADEC-9-ENOATE
C45 H78 O2
RJECHNNFRHZQKU-RMUVNZEASA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
PCW
Query on PCW

Download SDF File 
Download CCD File 
A
1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
(Z,Z)-4-HYDROXY-N,N,N-TRIMETHYL-10-OXO-7-[(1-OXO-9-OCTADECENYL)OXY]-3,5,9-TRIOXA-4-PHOSPHAHEPTACOS-18-EN-1-AMINIUM-4-OXIDE
C44 H85 N O8 P
SNKAWJBJQDLSFF-NVKMUCNASA-O
 Ligand Interaction
1PE
Query on 1PE

Download SDF File 
Download CCD File 
A
PENTAETHYLENE GLYCOL
PEG400
C10 H22 O6
JLFNLZLINWHATN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.217 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 66.780α = 90.00
b = 70.320β = 90.00
c = 187.620γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
REFMACrefinement
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2006-12-18 
  • Released Date: 2007-01-23 
  • Deposition Author(s): Qiu, X.

Revision History 

  • Version 1.0: 2007-01-23
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 2.0: 2017-11-29
    Type: Advisory, Atomic model, Derived calculations, Non-polymer description, Structure summary