4MGX

Crystal structure of human filamin C domains 4-5 and GPIB alpha cytoplasmic domain complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.16 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.229 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A Novel Structural Unit in the N-terminal Region of Filamins.

Sethi, R.Seppala, J.Tossavainen, H.Ylilauri, M.Ruskamo, S.Pentikainen, O.T.Pentikainen, U.Permi, P.Ylanne, J.

(2014) J Biol Chem 289: 8588-8598

  • DOI: 10.1074/jbc.M113.537456
  • Primary Citation of Related Structures:  
    4M9P, 4MGX, 3V8O

  • PubMed Abstract: 
  • Immunoglobulin-like (Ig) domains are a widely expanded superfamily that act as interaction motifs or as structural spacers in multidomain proteins. Vertebrate filamins (FLNs), which are multifunctional actin-binding proteins, consist of 24 Ig domains. We ...

    Immunoglobulin-like (Ig) domains are a widely expanded superfamily that act as interaction motifs or as structural spacers in multidomain proteins. Vertebrate filamins (FLNs), which are multifunctional actin-binding proteins, consist of 24 Ig domains. We have recently discovered that in the C-terminal rod 2 region of FLN, Ig domains interact with each other forming functional domain pairs, where the interaction with signaling and transmembrane proteins is mechanically regulated by weak actomyosin contraction forces. Here, we investigated if there are similar inter-domain interactions around domain 4 in the N-terminal rod 1 region of FLN. Protein crystal structures revealed a new type of domain organization between domains 3, 4, and 5. In this module, domains 4 and 5 interact rather tightly, whereas domain 3 has a partially flexible interface with domain 4. NMR peptide titration experiments showed that within the three-domain module, domain 4 is capable for interaction with a peptide derived from platelet glycoprotein Ib. Crystal structures of FLN domains 4 and 5 in complex with the peptide revealed a typical β sheet augmentation interaction observed for many FLN ligands. Domain 5 was found to stabilize domain 4, and this could provide a mechanism for the regulation of domain 4 interactions.


    Organizational Affiliation

    From the Department of Biological and Environmental Science and Nanoscience Center, University of Jyväskylä, P. O. Box 35, Survontie 9, 40014 Jyväskylä.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Filamin-C A185Homo sapiensMutation(s): 0 
Gene Names: FLNCABPLFLN2
Find proteins for Q14315 (Homo sapiens)
Explore Q14315 
Go to UniProtKB:  Q14315
NIH Common Fund Data Resources
PHAROS:  Q14315
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Platelet glycoprotein Ib alpha chain B9Homo sapiensMutation(s): 0 
Gene Names: GP1BA
Find proteins for P07359 (Homo sapiens)
Explore P07359 
Go to UniProtKB:  P07359
NIH Common Fund Data Resources
PHAROS:  P07359
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.16 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.229 
  • Space Group: P 43 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 111.8α = 90
b = 111.8β = 90
c = 59.88γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
EDNAdata collection

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2013-08-29 
  • Released Date: 2014-02-05 
  • Deposition Author(s): Sethi, R., Ylanne, J.

Revision History 

  • Version 1.0: 2014-02-05
    Type: Initial release
  • Version 1.1: 2014-02-12
    Changes: Database references
  • Version 1.2: 2014-04-09
    Changes: Database references