5CSN

S100B-RSK1 crystal structure C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.253 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural Basis of Ribosomal S6 Kinase 1 (RSK1) Inhibition by S100B Protein: MODULATION OF THE EXTRACELLULAR SIGNAL-REGULATED KINASE (ERK) SIGNALING CASCADE IN A CALCIUM-DEPENDENT WAY.

Gogl, G.Alexa, A.Kiss, B.Katona, G.Kovacs, M.Bodor, A.Remenyi, A.Nyitray, L.

(2016) J Biol Chem 291: 11-27

  • DOI: https://doi.org/10.1074/jbc.M115.684928
  • Primary Citation of Related Structures:  
    5CSF, 5CSI, 5CSJ, 5CSN

  • PubMed Abstract: 

    Mitogen-activated protein kinases (MAPK) promote MAPK-activated protein kinase activation. In the MAPK pathway responsible for cell growth, ERK2 initiates the first phosphorylation event on RSK1, which is inhibited by Ca(2+)-binding S100 proteins in malignant melanomas. Here, we present a detailed in vitro biochemical and structural characterization of the S100B-RSK1 interaction. The Ca(2+)-dependent binding of S100B to the calcium/calmodulin-dependent protein kinase (CaMK)-type domain of RSK1 is reminiscent of the better known binding of calmodulin to CaMKII. Although S100B-RSK1 and the calmodulin-CAMKII system are clearly distinct functionally, they demonstrate how unrelated intracellular Ca(2+)-binding proteins could influence the activity of the CaMK domain-containing protein kinases. Our crystallographic, small angle x-ray scattering, and NMR analysis revealed that S100B forms a "fuzzy" complex with RSK1 peptide ligands. Based on fast-kinetics experiments, we conclude that the binding involves both conformation selection and induced fit steps. Knowledge of the structural basis of this interaction could facilitate therapeutic targeting of melanomas.


  • Organizational Affiliation

    the Department of Chemistry and Molecular Biology, University of Gothenburg, 40530 Gothenburg, Sweden.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein S100-B
A, B
95Homo sapiensMutation(s): 0 
Gene Names: S100B
UniProt & NIH Common Fund Data Resources
Find proteins for P04271 (Homo sapiens)
Explore P04271 
Go to UniProtKB:  P04271
PHAROS:  P04271
GTEx:  ENSG00000160307 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04271
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Ribosomal protein S6 kinase alpha-140Homo sapiensMutation(s): 0 
Gene Names: RPS6KA1MAPKAPK1ARSK1
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q15418 (Homo sapiens)
Explore Q15418 
Go to UniProtKB:  Q15418
PHAROS:  Q15418
GTEx:  ENSG00000117676 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ15418
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.253 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.79α = 90
b = 39.93β = 90
c = 178.34γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-11-11
    Type: Initial release
  • Version 1.1: 2015-11-18
    Changes: Database references
  • Version 1.2: 2016-01-13
    Changes: Database references
  • Version 1.3: 2024-01-10
    Changes: Data collection, Database references, Refinement description