2AFJ | pdb_00002afj

SPRY domain-containing SOCS box protein 2 (SSB-2)

• PDB DOI: https://doi.org/10.2210/pdb2AFJ/pdb
• BMRB: 6311

• Classification: GENE REGULATION
• Organism(s): Mus musculus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2005-07-26 Released: 2006-01-03 
• Deposition Author(s): Masters, S.L., Yao, S., Willson, T.A., Zhang, J.G., Palmer, K.R., Smith, B.J., Babon, J.J., Nicola, N.A., Norton, R.S., Nicholson, S.E.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 194 
• Conformers Submitted: 20 
• Selection Criteria: structures with acceptable covalent geometry 

Literature

The SPRY domain of SSB-2 adopts a novel fold that presents conserved Par-4-binding residues

Masters, S.L., Yao, S., Willson, T.A., Zhang, J.G., Palmer, K.R., Smith, B.J., Babon, J.J., Nicola, N.A., Norton, R.S., Nicholson, S.E.

(2006) Nat Struct Mol Biol 13: 77-84

• PubMed: 16369487 
• DOI: https://doi.org/10.1038/nsmb1034
• Primary Citation Related Structures: 
  2AFJ


• PubMed Abstract: 
  

  The four mammalian SPRY domain-containing SOCS box proteins (SSB-1 to SSB-4) are characterized by a C-terminal SOCS box and a central SPRY domain. We have determined the first SPRY-domain structure, as part of SSB-2, by NMR. This domain adopts a novel fold consisting of a beta-sandwich structure formed by two four-stranded antiparallel beta-sheets with a unique topology. We demonstrate that SSB-1, SSB-2 and SSB-4, but not SSB-3, bind prostate apoptosis response protein-4 (Par-4). Mutational analysis of SSB-2 loop regions identified conserved structural determinants for its interaction with Par-4 and the hepatocyte growth factor receptor, c-Met. Mutations in analogous loop regions of pyrin and midline-1 SPRY domains have been shown to cause Mediterranean fever and Opitz syndrome, respectively. Our findings provide a template for SPRY-domain structure and an insight into the mechanism of SPRY-protein interaction.

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Organizational Affiliation: 
• The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, 3050, Victoria, Australia.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 24.89 kDa 
• Atom Count: 1,755 
• Modeled Residue Count: 226 
• Deposited Residue Count: 226 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
gene rich cluster, C9 gene	A	226	Mus musculus	Mutation(s): 0  Gene Names: Ssb-2
UniProt
Find proteins for O88838 (Mus musculus) Explore O88838  Go to UniProtKB:  O88838

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 194 
• Conformers Submitted: 20 
• Selection Criteria: structures with acceptable covalent geometry 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-01-03 
Deposition Author(s): Masters, S.L., Yao, S., Willson, T.A., Zhang, J.G., Palmer, K.R., Smith, B.J., Babon, J.J., Nicola, N.A., Norton, R.S., Nicholson, S.E.

Revision History  

• Version 1.0: 2006-01-03
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-09
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-05-29
  Changes: Data collection