Macromolecule Content

• Total Structure Weight: 10.08 kDa 
• Atom Count: 706 
• Modelled Residue Count: 98 
• Deposited Residue Count: 98 
• Unique protein chains: 1

2AAV

Solution NMR structure of Filamin A domain 17

• DOI: 10.2210/pdb2AAV/pdb
• BMRB: 6730

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-07-14 Released: 2006-05-02 
• Deposition Author(s): Nakamura, F., Pudas, R., Heikkinen, O., Permi, P., Kilpelainen, I., Munday, A.D., Hartwig, J.H., Stossel, T.P., Ylanne, J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 300 
• Conformers Submitted: 20 
• Selection Criteria: structures with favorable non-bond energy 

Literature

The structure of the GPIb-filamin A complex

Nakamura, F., Pudas, R., Heikkinen, O., Permi, P., Kilpelainen, I., Munday, A.D., Hartwig, J.H., Stossel, T.P., Ylanne, J.

(2006) Blood 107: 1925-1932

• PubMed: 16293600 
• DOI: 10.1182/blood-2005-10-3964
• Primary Citation of Related Structures:  
  2AAV, 2BP3


• PubMed Abstract: 
  

Filamin A (FLNa), a dimeric actin cross-linking and scaffold protein with numerous intracellular binding partners, anchors the platelet adhesion glycoprotein (GP) Ib-IX-V receptor to actin cytoskeleton. We mapped the GPIbalpha binding site to a single domain of FLNa and resolved the structure of this domain and its interaction complex with the corresponding GPIbalpha cytoplasmic domain. This is the first atomic structure of this class of membrane glycoprotein-cytoskeleton connection. GPIbalpha binds in a groove formed between the C and D beta strands of FLNa domain 17. The interaction is strikingly similar to that between the beta7 integrin tail and a different FLNa domain, potentially defining a conserved motif for FLNa binding. Nevertheless, the structures also reveal specificity of the interfaces, which explains different regulatory mechanisms. To verify the topology of GPIb-FLNa interaction we also purified the native complex from platelets and showed that GPIb interacts with the C-terminus of FLNa, which is in accordance with our biochemical and structural data.

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Organizational Affiliation: 

Hematology Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Filamin A	A	98	Homo sapiens	Mutation(s): 0  Gene Names: FLNA, FLN, FLN1
Find proteins for P21333 (Homo sapiens) Explore P21333  Go to UniProtKB:  P21333
NIH Common Fund Data Resources
PHAROS:  P21333 GTEx:  ENSG00000196924

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 300 
• Conformers Submitted: 20 
• Selection Criteria: structures with favorable non-bond energy 
• OLDERADO: 2AAV Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-07-14 
• Released Date: 2006-05-02 
Deposition Author(s): Nakamura, F., Pudas, R., Heikkinen, O., Permi, P., Kilpelainen, I., Munday, A.D., Hartwig, J.H., Stossel, T.P., Ylanne, J.

Revision History  

• Version 1.0: 2006-05-02
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance