2RMC

Crystal structure of murine cyclophilin C complexed with immunosuppressive drug cyclosporin A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.5 of the entry. See complete history

Literature

Crystal Structure of Murine Cyclophilin C Complexed with Immunosuppressive Drug Cyclosporin A

Ke, H.Zhao, Y.Luo, F.Weissman, I.Friedman, J.

(1993) Proc.Natl.Acad.Sci.USA 90: 11850


  • PubMed Abstract: 
  • Cyclophilin is a cellular receptor for the immunosuppressive drug cyclosporin A (CsA). Cyclophilin C (CyPC) is highly expressed in murine kidney, making it a potential mediator of the nephrotoxic effects of CsA. The structure of murine CyPC complexed ...

    Cyclophilin is a cellular receptor for the immunosuppressive drug cyclosporin A (CsA). Cyclophilin C (CyPC) is highly expressed in murine kidney, making it a potential mediator of the nephrotoxic effects of CsA. The structure of murine CyPC complexed with CsA has been solved and refined to an R factor of 0.197 at a 1.64-A resolution. Superposition of the CyPC-CsA structure with the unligated cyclophilin A (CyPA) revealed significant migration of three loops: Gln-179 to Thr-189, Asp-47 to Lys-49, and Met-170 to Ile-176. The proximity of the loop Gln-179 to Thr-189 to the CsA binding site may account for the unique binding of a 77-kDa glycoprotein, CyPC binding protein (CyCAP), to CyPC. The binding of CsA to CyPC is similar to that of CsA to human T-cell cyclophilin A (CyPA). However, the conformation of CsA when bound to CyPC is significantly different from that when bound to CyPA. These differences may reflect conformational variation of CsA when bound to different proteins. Alternatively, the previous CyPA-CsA structure at low resolution may not provide sufficient details for a comparison with the CyPC-CsA structure.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, Chapel Hill 27599.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PEPTIDYL-PROLYL CIS-TRANS ISOMERASE C
A, C, E, G
182Mus musculusGene Names: Ppic (Cypc)
EC: 5.2.1.8
Find proteins for P30412 (Mus musculus)
Go to UniProtKB:  P30412
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CYCLOSPORIN A
B, D, F, H
11N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000142
Query on PRD_000142
B,D,F,HCyclosporin ACyclic peptide / Immunosuppressant

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Work: 0.197 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 60.300α = 90.00
b = 74.000β = 90.00
c = 97.900γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-02-14
    Type: Initial release
  • Version 1.1: 2011-06-14
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-07-27
    Type: Advisory, Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary
  • Version 1.4: 2012-12-12
    Type: Other
  • Version 1.5: 2017-11-01
    Type: Derived calculations, Other