2BBU

solution structure of mouse socs3 in complex with a phosphopeptide from the gp130 receptor


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with favorable non-bond energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Structure of SOCS3 Reveals the Basis of the Extended SH2 Domain Function and Identifies an Unstructured Insertion That Regulates Stability

Babon, J.J.McManus, E.J.Yao, S.DeSouza, D.P.Mielke, L.A.Sprigg, N.S.Willson, T.A.Hilton, D.J.Nicola, N.A.Baca, M.Nicholson, S.E.Norton, R.S.

(2006) Mol.Cell 22: 205-216

  • DOI: 10.1016/j.molcel.2006.03.024

  • PubMed Abstract: 
  • SOCS3 is essential for regulating the extent, duration, and specificity of cellular responses to cytokines such as G-CSF and IL-6. Here we describe the solution structure of SOCS3, the first structure determined for any SOCS protein, in complex with ...

    SOCS3 is essential for regulating the extent, duration, and specificity of cellular responses to cytokines such as G-CSF and IL-6. Here we describe the solution structure of SOCS3, the first structure determined for any SOCS protein, in complex with a phosphotyrosine-containing peptide from the IL-6 receptor signaling subunit gp130. The structure of the complex shows that seven peptide residues form a predominantly hydrophobic binding motif. Regions outside the SOCS3 SH2 domain are important for ligand binding, in particular, a single 15 residue alpha helix immediately N-terminal to the SH2 domain makes direct contacts with the phosphotyrosine binding loop and, in part, determines its geometry. The SH2 domain itself is remarkable in that it contains a 35 residue unstructured PEST motif insertion that is not required for STAT inhibition. The PEST motif increases SOCS3 turnover and affects its degradation pathway, implying that it has an important regulatory role inside the cell.


    Organizational Affiliation

    The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, 3050, Victoria, Australia. babon@wehi.edu.au




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Suppressor of cytokine signaling 3
A
164Mus musculusMutation(s): 0 
Gene Names: Socs3 (Cis3, Cish3)
Find proteins for O35718 (Mus musculus)
Go to UniProtKB:  O35718
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GP130 PHOSPHOPEPTIDE
B
15Mus musculusMutation(s): 0 
Gene Names: Il6st
Find proteins for Q00560 (Mus musculus)
Go to UniProtKB:  Q00560
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
B
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with favorable non-bond energy 
  • Olderado: 2BBU Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-05-02
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance