2HMH

Crystal structure of SOCS3 in complex with gp130(pTyr757) phosphopeptide.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.242 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural basis for phosphotyrosine recognition by suppressor of cytokine signaling-3.

Bergamin, E.Wu, J.Hubbard, S.R.

(2006) Structure 14: 1285-1292

  • DOI: 10.1016/j.str.2006.06.011

  • PubMed Abstract: 
  • Suppressor of cytokine signaling (SOCS) proteins are indispensable negative regulators of cytokine-stimulated Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling pathways. SOCS proteins (SOCS1-7 and CIS) consist of a ...

    Suppressor of cytokine signaling (SOCS) proteins are indispensable negative regulators of cytokine-stimulated Janus kinase (JAK)-signal transducer and activator of transcription (STAT) signaling pathways. SOCS proteins (SOCS1-7 and CIS) consist of a variable N-terminal region, a central Src homology-2 (SH2) domain, and a C-terminal SOCS box. The N-terminal region in SOCS1 and SOCS3 includes the so-called kinase inhibitory region that has been shown to inhibit the catalytic activity of JAK2. Here, we present a crystal structure at 2.0 A resolution of the N-terminally extended SH2 domain of SOCS3 in complex with its phosphopeptide target on the cytokine receptor gp130. The structure reveals that major insertions in the EF and BG loops of the SOCS3 SH2 domain are responsible for binding to gp130 with high affinity and specificity. In addition, the structure provides insights into the possible mechanisms by which SOCS3 and SOCS1 inhibit JAK2 kinase activity.


    Organizational Affiliation

    Structural Biology Program, Skirball Institute of Biomolecular Medicine and Department of Pharmacology, New York University School of Medicine, New York, New York 10016, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Suppressor of cytokine signaling 3
A
152Mus musculusMutation(s): 0 
Gene Names: Socs3 (Cis3, Cish3)
Find proteins for O35718 (Mus musculus)
Go to UniProtKB:  O35718
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Interleukin-6 receptor beta chain
B
11Mus musculusMutation(s): 0 
Gene Names: Il6st
Find proteins for Q00560 (Mus musculus)
Go to UniProtKB:  Q00560
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
CAS
Query on CAS
A
L-PEPTIDE LINKINGC5 H12 As N O2 SCYS
PTR
Query on PTR
B
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.242 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 42.918α = 90.00
b = 94.708β = 90.00
c = 69.922γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-15
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-08-16
    Type: Source and taxonomy