1IKF

A CONFORMATION OF CYCLOSPORIN A IN AQUEOUS ENVIRONMENT REVEALED BY THE X-RAY STRUCTURE OF A CYCLOSPORIN-FAB COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.164 
  • R-Value Observed: 0.164 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

A Conformation of Cyclosporin a in Aqueous Environment Revealed by the X-Ray Structure of a Cyclosporin-Fab Complex.

Altschuh, D.Vix, O.Rees, B.Thierry, J.C.

(1992) Science 256: 92

  • DOI: 10.1126/science.1566062
  • Primary Citation of Related Structures:  
    1IKF

  • PubMed Abstract: 
  • The conformation of the immunosuppressive drug cyclosporin A (CsA) in a complex with a Fab molecule has been established by crystallographic analysis to 2.65 angstrom resolution. This conformation of CsA is similar to that recently observed in the complex with the rotamase cyclophilin, its binding protein in vivo, and totally different from its conformation in an isolated form as determined from x-ray and nuclear magnetic resonance analysis ...

    The conformation of the immunosuppressive drug cyclosporin A (CsA) in a complex with a Fab molecule has been established by crystallographic analysis to 2.65 angstrom resolution. This conformation of CsA is similar to that recently observed in the complex with the rotamase cyclophilin, its binding protein in vivo, and totally different from its conformation in an isolated form as determined from x-ray and nuclear magnetic resonance analysis. Because the surfaces of CsA interacting with cyclophilin or with the Fab are not identical, these results suggest that the conformation of CsA observed in the bound form preexists in aqueous solution and is not produced by interaction with the proteins.


    Related Citations: 
    • Crystallographic Analysis of the Interaction between Cyclosporin a and the Fab Fragment of a Monoclonal Antibody.
      Vix, O., Rees, B., Thierry, J.C., Altschuh, D.
      (1993) Proteins 15: 339

    Organizational Affiliation

    Department of Chemistry, University of California, Berkeley, CA 94720-5230, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
IGG1-KAPPA R45-45-11 FAB (LIGHT CHAIN)A [auth L]214Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
IGG1-KAPPA R45-45-11 FAB (HEAVY CHAIN)B [auth H]228Homo sapiensMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
CYCLOSPORIN AC11Tolypocladium inflatumMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  5 Unique
IDChainsTypeFormula2D DiagramParent
ABA
Query on ABA
CL-PEPTIDE LINKINGC4 H9 N O2ALA
BMT
Query on BMT
CL-PEPTIDE LINKINGC10 H19 N O3THR
MLE
Query on MLE
CL-PEPTIDE LINKINGC7 H15 N O2LEU
MVA
Query on MVA
CL-PEPTIDE LINKINGC6 H13 N O2VAL
SAR
Query on SAR
CPEPTIDE LINKINGC3 H7 N O2GLY
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 3
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000142
Query on PRD_000142
CCyclosporin ACyclic peptide /  Immunosuppressant Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.164 
  • R-Value Observed: 0.164 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.6α = 90
b = 70.2β = 90
c = 118.4γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-03-31
    Type: Initial release
  • Version 1.1: 2011-06-14
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-07-27
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary
  • Version 1.4: 2012-12-12
    Changes: Other