4I94

Structure of BSK8 in complex with AMP-PNP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.176 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


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: https://doi.org/10.1016/j.jmb.2013.07.034
  • Primary Citation of Related Structures:  
    4I92, 4I93, 4I94

  • 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 "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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Probable serine/threonine-protein kinase At5g41260
A, B
300Arabidopsis thalianaMutation(s): 0 
Gene Names: At5g41260K1O13.5
EC: 2.7.11.1
UniProt
Find proteins for Q9FHD7 (Arabidopsis thaliana)
Explore Q9FHD7 
Go to UniProtKB:  Q9FHD7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9FHD7
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.176 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.1α = 90
b = 74.28β = 105.73
c = 65.52γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

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