3ODI

Crystal structure of cyclophilin A in complex with Voclosporin E-ISA247


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis for the cyclophilin A binding affinity and immunosuppressive potency of E-ISA247 (voclosporin).

Kuglstatter, A.Mueller, F.Kusznir, E.Gsell, B.Stihle, M.Thoma, R.Benz, J.Aspeslet, L.Freitag, D.Hennig, M.

(2011) Acta Crystallogr.,Sect.D 67: 119-123

  • DOI: 10.1107/S0907444910051905
  • Primary Citation of Related Structures:  3ODL

  • PubMed Abstract: 
  • E-ISA247 (voclosporin) is a cyclosporin A analogue that is in late-stage clinical development for the treatment of autoimmune diseases and the prevention of organ graft rejection. The X-ray crystal structures of E-ISA247 and its stereoisomer Z-ISA247 ...

    E-ISA247 (voclosporin) is a cyclosporin A analogue that is in late-stage clinical development for the treatment of autoimmune diseases and the prevention of organ graft rejection. The X-ray crystal structures of E-ISA247 and its stereoisomer Z-ISA247 bound to cyclophilin A have been determined and their binding affinities were measured to be 15 and 61 nM, respectively, by fluorescence spectroscopy. The higher affinity of E-ISA247 can be explained by superior van der Waals contacts between its unique side chain and cyclophilin A. Comparison with the known ternary structure including calcineurin suggests that the higher immunosuppressive efficacy of E-ISA247 relative to cyclosporin A could be a consequence of structural changes in calcineurin induced by the modified E-ISA247 side chain.


    Organizational Affiliation

    F. Hoffmann-La Roche, Discovery Technologies, 4070 Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cyclophilin A
A, C, E, G, I, K, M, O, Q, S
165Homo sapiensGene Names: PPIA (CYPA)
EC: 5.2.1.8
Find proteins for P62937 (Homo sapiens)
Go to Gene View: PPIA
Go to UniProtKB:  P62937
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Voclosporin
B, D, F, H, J, L, N, P, R, T
11N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  6 Unique
IDChainsTypeFormula2D DiagramParent
ABA
Query on ABA
B, D, F, H, J, L, N, P, R, T
L-PEPTIDE LINKINGC4 H9 N O2ALA
SAR
Query on SAR
B, D, F, H, J, L, N, P, R, T
PEPTIDE LINKINGC3 H7 N O2GLY
XXA
Query on XXA
B, D, F, H, J, L, N, P, R, T
L-PEPTIDE LINKINGC11 H19 N O3

--

MLE
Query on MLE
B, D, F, H, J, L, N, P, R, T
L-PEPTIDE LINKINGC7 H15 N O2LEU
DAL
Query on DAL
B, D, F, H, J, L, N, P, R, T
D-PEPTIDE LINKINGC3 H7 N O2

--

MVA
Query on MVA
B, D, F, H, J, L, N, P, R, T
L-PEPTIDE LINKINGC6 H13 N O2VAL
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.164 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 69.179α = 90.00
b = 161.341β = 100.06
c = 93.654γ = 90.00
Software Package:
Software NamePurpose
MAR345dtbdata collection
SCALEPACKdata scaling
DENZOdata reduction
REFMACrefinement
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-02-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance