2YAD

BRICHOS domain of Surfactant protein C precursor protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

High Resolution Structure of a Bricos Domain and its Implications for Anti-Amyloid Chaperone Activity on Lung Surgactant Protein C.

Willander, H.Askarieh, G.Landreh, M.Westermark, P.Nordling, K.Keranen, H.Hermansson, E.Hamvas, A.Nogee, L.M.Bergman, T.Saenz, A.Casals, C.Aqvist, J.Jornvall, H.Berglund, H.Presto, J.Knight, S.D.Johansson, J.

(2012) Proc Natl Acad Sci U S A 109: 2325

  • DOI: 10.1073/pnas.1114740109
  • Primary Citation of Related Structures:  
    2YAD

  • PubMed Abstract: 
  • BRICHOS domains are encoded in > 30 human genes, which are associated with cancer, neurodegeneration, and interstitial lung disease (ILD). The BRICHOS domain from lung surfactant protein C proprotein (proSP-C) is required for membrane insertion of SP ...

    BRICHOS domains are encoded in > 30 human genes, which are associated with cancer, neurodegeneration, and interstitial lung disease (ILD). The BRICHOS domain from lung surfactant protein C proprotein (proSP-C) is required for membrane insertion of SP-C and has anti-amyloid activity in vitro. Here, we report the 2.1 Å crystal structure of the human proSP-C BRICHOS domain, which, together with molecular dynamics simulations and hydrogen-deuterium exchange mass spectrometry, reveals how BRICHOS domains may mediate chaperone activity. Observation of amyloid deposits composed of mature SP-C in lung tissue samples from ILD patients with mutations in the BRICHOS domain or in its peptide-binding linker region supports the in vivo relevance of the proposed mechanism. The results indicate that ILD mutations interfering with proSP-C BRICHOS activity cause amyloid disease secondary to intramolecular chaperone malfunction.


    Organizational Affiliation

    Department of Anatomy, Physiology, and Biochemistry, Swedish University of Agricultural Sciences, S-751 24 Uppsala, Sweden.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SURFACTANT PROTEIN C BRICHOS DOMAINABCDEF171Homo sapiensMutation(s): 0 
Gene Names: SFTPCSFTP2
Find proteins for P11686 (Homo sapiens)
Explore P11686 
Go to UniProtKB:  P11686
NIH Common Fund Data Resources
PHAROS  P11686
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,B,C,D,E,FL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.192 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 132.046α = 90
b = 39.329β = 99.63
c = 114.756γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement

Structure Validation

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Entry History