4I93

Structure of the BSK8 kinase domain (SeMet labeled)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural Characterization of the RLCK Family Member BSK8: A Pseudokinase with an Unprecedented Architecture

Grutter, C.Sreeramulu, S.Sessa, G.Rauh, D.

(2013) J Mol Biol 425: 4455-4467

  • DOI: 10.1016/j.jmb.2013.07.034
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Brassinosteroid signaling kinases (BSKs) are plant-specific receptor-like cytoplasmic protein kinases involved in the brassinosteroid signaling pathway. Unlike common protein kinases, they possess a naturally occurring alanine residue at the "gatekee ...

    Brassinosteroid signaling kinases (BSKs) are plant-specific receptor-like cytoplasmic protein kinases involved in the brassinosteroid signaling pathway. Unlike common protein kinases, they possess a naturally occurring alanine residue at the "gatekeeper" position, as well as other sequence variations. How BSKs activate downstream proteins such as BSU1, as well as the structural consequences of their unusual sequential features, was unclear. We crystallized the catalytic domain of BSK8 and solved its structure by multiple-wavelength anomalous dispersion phasing methods to a resolution of 1.5Å. In addition, a co-crystal structure of BSK8 with 5-adenylyl imidodiphosphate (AMP-PNP) revealed unusual conformational arrangements of the nucleotide phosphate groups and catalytic key motifs, typically not observed for active protein kinases. Sequential analysis and comparisons with known pseudokinase structures suggest that BSKs represent constitutively inactive protein kinases that regulate brassinosteroid signal transfer through an allosteric mechanism.


    Organizational Affiliation

    Technische Universität Dortmund Fakultät Chemie und Chemische Biologie, Otto-Hahn-Strasse 6, D-44227 Dortmund, Germany.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Probable serine/threonine-protein kinase At5g41260
A, B
300Arabidopsis thalianaMutation(s): 0 
Gene Names: At5g41260K1O13.5BSK8
EC: 2.7.11.1
Find proteins for Q9FHD7 (Arabidopsis thaliana)
Go to UniProtKB:  Q9FHD7
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.181 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.898α = 90
b = 77.552β = 105.67
c = 68.147γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata scaling
XDSdata reduction
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2012-12-04 
  • Released Date: 2013-08-14 
  • Deposition Author(s): Gruetter, C., Rauh, D.

Revision History 

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2013-11-20
    Changes: Database references