Macromolecule Content

• Total Structure Weight: 11061.80 
• Atom Count: 776 
• Residue Count: 96 
• Unique protein chains: 1

2GTJ

Reduced form of ADAP hSH3-N-domain

• DOI: 10.2210/pdb2GTJ/pdb
• BMRB: 6536

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2006-04-28 Released: 2007-06-05 
• Deposition Author(s): Zimmermann, J., Kuehne, R., Freund, C.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Redox-Regulated Conformational Changes in an SH3 Domain

Zimmermann, J., Kuhne, R., Sylvester, M., Freund, C.

(2007) Biochemistry 46: 6971-6977

• PubMed: 17511475 
• DOI: 10.1021/bi700437r
• Primary Citation of Related Structures:  
  2GTO


• PubMed Abstract: 
  

Oxidation-induced conformational changes in proteins provide a powerful mechanism to sense the redox state of a living cell. In contrast to the unspecific and often irreversible oxidation of intracellular proteins during severe oxidative stress, regulatory redox events need to have specific and transient effects on cellular targets. Here we present evidence for the reversible formation of a vicinal disulfide bond in a prototypic protein interaction domain. NMR spectroscopy was used to determine the structure of the N-terminal hSH3 domain (hSH3N) of the immune cell protein ADAP (adhesion and degranulation promoting adapter protein) in the reduced and oxidized states. An eight-membered ring formed upon oxidation of two neighboring cysteines leads to significant changes in the variable arginine-threonine (RT) loop of the hSH3N domain and alters the helix-sheet packing of the domain. The redox potential for this structural transition is -228 mV at pH 7.4. This is compatible with a role of the cysteinylcysteine moiety in redox signaling during T cell activation.

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Related Citations: 

• NMR assignment of the reduced and oxidized forms of the human ADAP hSH3-1 domain.
  Zimmermann, J.,Freund, C.
  (2005) J.Biomol.Nmr 32: 94




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Organizational Affiliation: 

Protein Engineering Group, Leibniz-Institut für Molekulare Pharmakologie und Freie Universität Berlin, 13125 Berlin, Germany.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
FYN-binding protein	A	96	Homo sapiens	Mutation(s): 0  Gene Names: FYB1 (FYB, SLAP130)
Find proteins for O15117 (Homo sapiens) Go to Gene View: FYB1 Go to UniProtKB:  O15117

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• Olderado: 2GTJ Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-04-28 
• Released Date: 2007-06-05 
• Deposition Author(s): Zimmermann, J., Kuehne, R., Freund, C.

Revision History 

• Version 1.0: 2007-06-05
  Type: Initial release
• Version 1.1: 2008-05-01
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance