1BP1

CRYSTAL STRUCTURE OF BPI, THE HUMAN BACTERICIDAL PERMEABILITY-INCREASING PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of human BPI and two bound phospholipids at 2.4 angstrom resolution.

Beamer, L.J.Carroll, S.F.Eisenberg, D.

(1997) Science 276: 1861-1864


  • PubMed Abstract: 
  • Bactericidal/permeability-increasing protein (BPI), a potent antimicrobial protein of 456 residues, binds to and neutralizes lipopolysaccharides from the outer membrane of Gram-negative bacteria. At a resolution of 2.4 angstroms, the crystal structur ...

    Bactericidal/permeability-increasing protein (BPI), a potent antimicrobial protein of 456 residues, binds to and neutralizes lipopolysaccharides from the outer membrane of Gram-negative bacteria. At a resolution of 2.4 angstroms, the crystal structure of human BPI shows a boomerang-shaped molecule formed by two similar domains. Two apolar pockets on the concave surface of the boomerang each bind a molecule of phosphatidylcholine, primarily by interacting with their acyl chains; this suggests that the pockets may also bind the acyl chains of lipopolysaccharide. As a model for the related plasma lipid transfer proteins, BPI illuminates a mechanism of lipid transfer for this protein family.


    Related Citations: 
    • Prospects for Use of Rbpi Fragments in the Treatment of Gram-Negative Bacterial Infections
      Elsbach, P.,Weiss, J.
      (1995) Infect.Agents Dis. 4: 102


    Organizational Affiliation

    UCLA-DOE Laboratory of Structural Biology and Molecular Medicine, Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BACTERICIDAL/PERMEABILITY-INCREASING PROTEIN
A
456Homo sapiensGene Names: BPI
Find proteins for P17213 (Homo sapiens)
Go to Gene View: BPI
Go to UniProtKB:  P17213
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PC1
Query on PC1

Download SDF File 
Download CCD File 
A
1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
3-SN-PHOSPHATIDYLCHOLINE
C44 H88 N O8 P
NRJAVPSFFCBXDT-HUESYALOSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.225 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 185.600α = 90.00
b = 33.000β = 101.60
c = 85.200γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
X-PLORphasing
X-PLORrefinement
DENZOdata reduction
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-09-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance