Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 31018.95 
• Atom Count: 2173 
• Residue Count: 291 
• Unique protein chains: 1

4M9P

Crystal structure of the human filamin A Ig-like domains 3-5

• DOI: 10.2210/pdb4M9P/pdb

• Classification: CELL ADHESION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21


• Deposited: 2013-08-15 Released: 2014-02-05 
• Deposition Author(s): Seppala, J., Pentikainen, U., Ylanne, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.72 Å
• R-Value Free: 0.243 
• R-Value Work: 0.199 

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

• PubMed: 24469451 
• DOI: 10.1074/jbc.M113.537456
• Primary Citation of Related Structures:  
  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 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.

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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: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Filamin-A	A	291	Homo sapiens	Mutation(s): 0  Gene Names: FLNA (FLN, FLN1)
Find proteins for P21333 (Homo sapiens) Go to Gene View: FLNA Go to UniProtKB:  P21333

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.72 Å
• R-Value Free: 0.243 
• R-Value Work: 0.199 
• Space Group: P 6₅

Unit Cell:

Length (Å)	Angle (°)
a = 63.041	α = 90.00
b = 63.041	β = 90.00
c = 136.604	γ = 120.00

Software Package:

Software Name	Purpose
REFMAC	refinement
EDNA	data collection
XDS	data reduction
PHASER	phasing
XSCALE	data scaling
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-08-15 
• Released Date: 2014-02-05 
• Deposition Author(s): Seppala, J., Pentikainen, U., Ylanne, J.

Revision History 

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