5HSV

X-Ray structure of a CypA-Alisporivir complex at 1.5 angstrom resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.167 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

X-ray structure of alisporivir in complex with cyclophilin A at 1.5 angstrom resolution.

Dujardin, M.Bouckaert, J.Rucktooa, P.Hanoulle, X.

(2018) Acta Crystallogr F Struct Biol Commun 74: 583-592

  • DOI: 10.1107/S2053230X18010415
  • Primary Citation of Related Structures:  
    5HSV

  • PubMed Abstract: 
  • Alisporivir (ALV) is an 11-amino-acid hydrophobic cyclic peptide with N-methyl-D-alanine and N-ethyl-L-valine (NEV) residues at positions 3 and 4, respectively. ALV is a non-immunosuppressive cyclosporin A (CsA) derivative. This inhibitor targets cyclophilins (Cyps), a family of proteins with peptidyl-prolyl cis/trans isomerase enzymatic activity ...

    Alisporivir (ALV) is an 11-amino-acid hydrophobic cyclic peptide with N-methyl-D-alanine and N-ethyl-L-valine (NEV) residues at positions 3 and 4, respectively. ALV is a non-immunosuppressive cyclosporin A (CsA) derivative. This inhibitor targets cyclophilins (Cyps), a family of proteins with peptidyl-prolyl cis/trans isomerase enzymatic activity. Cyps act as protein chaperones and are involved in numerous cellular functions. Moreover, Cyps have been shown to be an essential cofactor for the replication of many viruses, including Hepatitis C virus and Human immunodeficiency virus, and have also been shown to be involved in mitochondrial diseases. For these reasons, cyclophilins represent an attractive drug target. The structure of ALV in complex with cyclophilin A (CypA), the most abundant Cyp in humans, has been determined at 1.5 Å resolution. This first structure of the CypA-ALV complex shows that the binding of ALV is highly similar to that of CsA. The high resolution allowed the unambiguous determination of the conformations of residues 3 and 4 in ALV when bound to its target. In particular, the side-chain conformation of NEV4 precludes the interaction of the CypA-ALV complex with calcineurin, a cellular protein phosphatase involved in the immune response, which explains the non-immunosuppressive property of ALV. This study provides detailed molecular insights into the CypA-ALV interaction.


    Organizational Affiliation

    UGSF-UMR8576, University of Lille, CNRS, F-59000 Lille, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Peptidyl-prolyl cis-trans isomerase AA, B, C, D168Chlorocebus aethiopsMutation(s): 0 
Gene Names: PPIACYPA
EC: 5.2.1.8
UniProt
Find proteins for P62938 (Chlorocebus aethiops)
Explore P62938 
Go to UniProtKB:  P62938
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
AlisporivirE, F, G, H11Tolypocladium inflatumMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  4 Unique
IDChainsTypeFormula2D DiagramParent
ABA
Query on ABA
E, F, G, HL-PEPTIDE LINKINGC4 H9 N O2ALA
BMT
Query on BMT
E, F, G, HL-PEPTIDE LINKINGC10 H19 N O3THR
MLE
Query on MLE
E, F, G, HL-PEPTIDE LINKINGC7 H15 N O2LEU
MVA
Query on MVA
E, F, G, HL-PEPTIDE LINKINGC6 H13 N O2VAL
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.167 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.904α = 115.12
b = 68.443β = 103.17
c = 71.952γ = 93.96
Software Package:
Software NamePurpose
Aimlessdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
MxCuBEdata collection

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR JCJC StruFunc5A5B

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-16
    Type: Initial release
  • Version 1.1: 2018-09-19
    Changes: Data collection, Database references
  • Version 1.2: 2018-10-10
    Changes: Data collection, Database references