2YAD

BRICHOS domain of Surfactant protein C precursor protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.190 

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.USA 109: 2325

  • DOI: 10.1073/pnas.1114740109

  • 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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SURFACTANT PROTEIN C BRICHOS DOMAIN
A, B, C, D, E, F
171Homo sapiensMutation(s): 0 
Gene Names: SFTPC (SFTP2)
Find proteins for P11686 (Homo sapiens)
Go to Gene View: SFTPC
Go to UniProtKB:  P11686
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.190 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 132.046α = 90.00
b = 39.329β = 99.63
c = 114.756γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History