Pry1 CAP domain

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 

Starting Model: experimental
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Structural and functional characterization of the CAP domain of pathogen-related yeast 1 (Pry1) protein.

Darwiche, R.Kelleher, A.Hudspeth, E.M.Schneiter, R.Asojo, O.A.

(2016) Sci Rep 6: 28838-28838

  • DOI: https://doi.org/10.1038/srep28838
  • Primary Citation of Related Structures:  
    5ETE, 5JYS

  • PubMed Abstract: 

    The production, crystal structure, and functional characterization of the C-terminal cysteine-rich secretory protein/antigen 5/pathogenesis related-1 (CAP) domain of pathogen-related yeast protein-1 (Pry1) from Saccharomyces cerevisiae is presented. The CAP domain of Pry1 (Pry1CAP) is functional in vivo as its expression restores cholesterol export to yeast mutants lacking endogenous Pry1 and Pry2. Recombinant Pry1CAP forms dimers in solution, is sufficient for in vitro cholesterol binding, and has comparable binding properties as full-length Pry1. Two crystal structures of Pry1CAP are reported, one with Mg(2+) coordinated to the conserved CAP tetrad (His208, Glu215, Glu233 and His250) in spacegroup I41 and the other without divalent cations in spacegroup P6122. The latter structure contains four 1,4-dioxane molecules from the crystallization solution, one of which sits in the cholesterol binding site. Both structures reveal that the divalent cation and cholesterol binding sites are connected upon dimerization, providing a structural basis for the observed Mg(2+)-dependent sterol binding by Pry1.

  • Organizational Affiliation

    Division of Biochemistry, Department of Biology, University of Fribourg Chemin du Musée 10 CH 1700 Fribourg Switzerland.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein PRY1298Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: PRY1YJL079CJ1022
Find proteins for P47032 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P47032 
Go to UniProtKB:  P47032
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP47032
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on MG

Download Ideal Coordinates CCD File 
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 
  • Space Group: I 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.105α = 90
b = 69.105β = 90
c = 97.73γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

  • Released Date: 2016-07-20 
  • Deposition Author(s): Asojo, O.A.

Revision History  (Full details and data files)

  • Version 1.0: 2016-07-20
    Type: Initial release
  • Version 1.1: 2023-09-27
    Changes: Data collection, Database references, Derived calculations, Refinement description