1CQP

CRYSTAL STRUCTURE ANALYSIS OF THE COMPLEX LFA-1 (CD11A) I-DOMAIN / LOVASTATIN AT 2.6 A RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural basis for LFA-1 inhibition upon lovastatin binding to the CD11a I-domain.

Kallen, J.Welzenbach, K.Ramage, P.Geyl, D.Kriwacki, R.Legge, G.Cottens, S.Weitz-Schmidt, G.Hommel, U.

(1999) J Mol Biol 292: 1-9

  • DOI: 10.1006/jmbi.1999.3047
  • Primary Citation of Related Structures:  
    1CQP

  • PubMed Abstract: 
  • The lymphocyte function-associated antigen (LFA-1) belongs to the family of beta2-integrins and plays an important role in T-cell activation and leukocyte migration to sites of inflammation. We report here that lovastatin, a drug clinically used for lowering cholesterol levels, inhibits the interaction of human LFA-1 with its counter-receptor intercellular adhesion molecule-1 ...

    The lymphocyte function-associated antigen (LFA-1) belongs to the family of beta2-integrins and plays an important role in T-cell activation and leukocyte migration to sites of inflammation. We report here that lovastatin, a drug clinically used for lowering cholesterol levels, inhibits the interaction of human LFA-1 with its counter-receptor intercellular adhesion molecule-1. Using nuclear magnetic resonance spectroscopy and X-ray crystallography we show that the inhibitor binds to a highly conserved domain of the LFA-1 alpha-chain called the I-domain. The first three-dimensional structure of an integrin inhibitor bound to its receptor reveals atomic details for a hitherto unknown mode of LFA-1 inhibition. It also sheds light into possible mechanisms of LFA-1 mediated signalling and will support the design of novel anti-adhesive and immunosuppressive drugs.


    Organizational Affiliation

    Preclinical Research, NOVARTIS PHARMA AG, Basel, CH 4002, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ANTIGEN CD11A (P180)A, B182Homo sapiensMutation(s): 0 
Gene Names: ITGALCD11A
UniProt & NIH Common Fund Data Resources
Find proteins for P20701 (Homo sapiens)
Explore P20701 
Go to UniProtKB:  P20701
PHAROS:  P20701
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
803
Query on 803

Download Ideal Coordinates CCD File 
D [auth A], F [auth B]LOVASTATIN
C24 H36 O5
PCZOHLXUXFIOCF-BXMDZJJMSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
C [auth A], E [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
803IC50 :  2400   nM  PDBBind
803Kd:  12900   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.7α = 90
b = 77.7β = 90
c = 91.8γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-08-07
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2014-11-12
    Changes: Structure summary