5DCP

Crystal structure of the human filamin B Ig-like domains 16-17


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Skeletal Dysplasia Mutations Effect on Human Filamins' Structure and Mechanosensing.

Seppala, J.Bernardi, R.C.Haataja, T.J.K.Hellman, M.Pentikainen, O.T.Schulten, K.Permi, P.Ylanne, J.Pentikainen, U.

(2017) Sci Rep 7: 4218-4218

  • DOI: 10.1038/s41598-017-04441-x

  • PubMed Abstract: 
  • Cells' ability to sense mechanical cues in their environment is crucial for fundamental cellular processes, leading defects in mechanosensing to be linked to many diseases. The actin cross-linking protein Filamin has an important role in the conversi ...

    Cells' ability to sense mechanical cues in their environment is crucial for fundamental cellular processes, leading defects in mechanosensing to be linked to many diseases. The actin cross-linking protein Filamin has an important role in the conversion of mechanical forces into biochemical signals. Here, we reveal how mutations in Filamin genes known to cause Larsen syndrome and Frontometaphyseal dysplasia can affect the structure and therefore function of Filamin domains 16 and 17. Employing X-ray crystallography, the structure of these domains was first solved for the human Filamin B. The interaction seen between domains 16 and 17 is broken by shear force as revealed by steered molecular dynamics simulations. The effects of skeletal dysplasia associated mutations of the structure and mechanosensing properties of Filamin were studied by combining various experimental and theoretical techniques. The results showed that Larsen syndrome associated mutations destabilize or even unfold domain 17. Interestingly, those Filamin functions that are mediated via domain 17 interactions with other proteins are not necessarily affected as strongly interacting peptide binding to mutated domain 17 induces at least partial domain folding. Mutation associated to Frontometaphyseal dysplasia, in turn, transforms 16-17 fragment from compact to an elongated form destroying the force-regulated domain pair.


    Organizational Affiliation

    Department of Biological and Environmental Science and Nanoscience Center, University of Jyvaskyla, P.O Box 35, Survontie 9 C, FI-40014, Jyvaskyla, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Filamin-B
A, B
175Homo sapiensMutation(s): 0 
Gene Names: FLNB (FLN1L, FLN3, TABP, TAP)
Find proteins for O75369 (Homo sapiens)
Go to Gene View: FLNB
Go to UniProtKB:  O75369
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.206 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 80.620α = 90.00
b = 80.620β = 90.00
c = 118.016γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
XSCALEdata scaling
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-08-24
    Type: Initial release
  • Version 1.1: 2017-12-06
    Type: Database references
  • Version 1.2: 2018-04-11
    Type: Data collection