4FRV

Crystal structure of mutated cyclophilin B that causes hyperelastosis cutis in the American Quarter Horse


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.138 
  • R-Value Work: 0.119 
  • R-Value Observed: 0.120 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Literature

Crystal structures of wild-type and mutated cyclophilin B that causes hyperelastosis cutis in the American quarter horse.

Boudko, S.P.Ishikawa, Y.Lerch, T.F.Nix, J.Chapman, M.S.Bachinger, H.P.

(2012) BMC Res Notes 5: 626-626

  • DOI: https://doi.org/10.1186/1756-0500-5-626
  • Primary Citation of Related Structures:  
    4FRU, 4FRV

  • PubMed Abstract: 

    Hyperelastosis cutis is an inherited autosomal recessive connective tissue disorder. Affected horses are characterized by hyperextensible skin, scarring, and severe lesions along the back. The disorder is caused by a mutation in cyclophilin B. The crystal structures of both wild-type and mutated (Gly6->Arg) horse cyclophilin B are presented. The mutation neither affects the overall fold of the enzyme nor impairs the catalytic site structure. Instead, it locally rearranges the flexible N-terminal end of the polypeptide chain and also makes it more rigid. Interactions of the mutated cyclophilin B with a set of endoplasmic reticulum-resident proteins must be affected.


  • Organizational Affiliation

    Research Department, Shriners Hospital for Children, Portland, OR 97239, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Peptidyl-prolyl cis-trans isomerase185Equus caballusMutation(s): 0 
Gene Names: PPIB
EC: 5.2.1.8
UniProt
Find proteins for A5YBL8 (Equus caballus)
Explore A5YBL8 
Go to UniProtKB:  A5YBL8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA5YBL8
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.138 
  • R-Value Work: 0.119 
  • R-Value Observed: 0.120 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.79α = 90
b = 44.16β = 95.45
c = 60.11γ = 90
Software Package:
Software NamePurpose
AMoREphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-11-14
    Type: Initial release
  • Version 1.1: 2013-01-09
    Changes: Database references
  • Version 1.2: 2013-03-13
    Changes: Refinement description
  • Version 1.3: 2017-11-15
    Changes: Refinement description
  • Version 1.4: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description