1CWA

X-RAY STRUCTURE OF A MONOMERIC CYCLOPHILIN A-CYCLOSPORIN A CRYSTAL COMPLEX AT 2.1 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Work: 0.167 
  • R-Value Observed: 0.167 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

X-Ray Structure of a Monomeric Cyclophilin A-Cyclosporin a Crystal Complex at 2.1 A Resolution.

Mikol, V.Kallen, J.Pflugl, G.Walkinshaw, M.D.

(1993) J Mol Biol 234: 1119

  • DOI: https://doi.org/10.1006/jmbi.1993.1664
  • Primary Citation of Related Structures:  
    1CWA

  • PubMed Abstract: 

    The crystal structure of a complex between recombinant human cyclophilin A (Cyp) and cyclosporin A (CsA) has been determined from a novel orthorhombic crystal form that contains only one monomer of complex per asymmetric unit rather than five in the previously determined tetragonal structure. The structure has been refined at 2.1 A resolution to a crystallographic R-factor of 16.7%. The conformation of Cyp is practically unchanged with respect to the tetragonal form. A certain number of previously undefined side-chains have been located in the electron density and a very detailed picture of the ordered solvent structure has been obtained. The interactions between CsA and Cyp are conserved. A network of the possibly conserved, water-mediated contacts is described. The structure of CsA in the monomeric complex is similar to that of the decameric complex, but shows a few small differences in the so-called effector domain of CsA, probably due to differences in crystal environment. The fact that this monomeric crystal form can be obtained shows that the formation of pentamer or decamer complexes is not a generally observed phenomenon and is not a prerequisite for biological activity.


  • Organizational Affiliation

    Preclinical Research, Sandoz AG, Basel, Switzerland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PEPTIDYL-PROLYL CIS-TRANS ISOMERASE A165Homo sapiensMutation(s): 0 
Gene Names: CYCLOPHILIN
EC: 5.2.1.8
UniProt & NIH Common Fund Data Resources
Find proteins for P62937 (Homo sapiens)
Explore P62937 
Go to UniProtKB:  P62937
PHAROS:  P62937
GTEx:  ENSG00000196262 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62937
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
CYCLOSPORIN AB [auth C]11Tolypocladium inflatumMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  5 Unique
IDChains TypeFormula2D DiagramParent
ABA
Query on ABA
B [auth C]L-PEPTIDE LINKINGC4 H9 N O2ALA
BMT
Query on BMT
B [auth C]L-PEPTIDE LINKINGC10 H19 N O3THR
MLE
Query on MLE
B [auth C]L-PEPTIDE LINKINGC7 H15 N O2LEU
MVA
Query on MVA
B [auth C]L-PEPTIDE LINKINGC6 H13 N O2VAL
SAR
Query on SAR
B [auth C]PEPTIDE LINKINGC3 H7 N O2GLY
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChains NameType/Class2D Diagram3D Interactions
PRD_000142
Query on PRD_000142
B [auth C]Cyclosporin ACyclic peptide / Immunosuppressant
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Work: 0.167 
  • R-Value Observed: 0.167 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.395α = 90
b = 60.718β = 90
c = 72.21γ = 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: 1996-01-29
    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
  • Version 1.5: 2024-06-05
    Changes: Data collection, Database references, Derived calculations, Other