4BGQ

Crystal structure of the human CDKL5 kinase domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.175 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

CDKL Family Kinases Have Evolved Distinct Structural Features and Ciliary Function.

Canning, P.Park, K.Goncalves, J.Li, C.Howard, C.J.Sharpe, T.D.Holt, L.J.Pelletier, L.Bullock, A.N.Leroux, M.R.

(2018) Cell Rep 22: 885-894

  • DOI: https://doi.org/10.1016/j.celrep.2017.12.083
  • Primary Citation of Related Structures:  
    3ZDU, 4AAA, 4AGU, 4BBM, 4BGQ

  • PubMed Abstract: 

    Various kinases, including a cyclin-dependent kinase (CDK) family member, regulate the growth and functions of primary cilia, which perform essential roles in signaling and development. Neurological disorders linked to CDK-Like (CDKL) proteins suggest that these underexplored kinases may have similar functions. Here, we present the crystal structures of human CDKL1, CDKL2, CDKL3, and CDKL5, revealing their evolutionary divergence from CDK and mitogen-activated protein kinases (MAPKs), including an unusual ?J helix important for CDKL2 and CDKL3 activity. C. elegans CDKL-1, most closely related to CDKL1-4 and localized to neuronal cilia transition zones, modulates cilium length; this depends on its kinase activity and ?J helix-containing C terminus. Human CDKL5, linked to Rett syndrome, also localizes to cilia, and it impairs ciliogenesis when overexpressed. CDKL5 patient mutations modeled in CDKL-1 cause localization and/or cilium length defects. Together, our studies establish a disease model system suggesting cilium length defects as a pathomechanism for neurological disorders, including epilepsy.


  • Organizational Affiliation

    Department of Molecular Biology and Biochemistry, and Centre for Cell Biology, Development, and Disease, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CYCLIN-DEPENDENT KINASE-LIKE 5304Homo sapiensMutation(s): 2 
EC: 2.7.11.22
UniProt & NIH Common Fund Data Resources
Find proteins for O76039 (Homo sapiens)
Explore O76039 
Go to UniProtKB:  O76039
PHAROS:  O76039
GTEx:  ENSG00000008086 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO76039
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
38R
Query on 38R

Download Ideal Coordinates CCD File 
C [auth A][4-({4-[(3-cyclopentyl-1H-pyrazol-5-yl)amino]pyrimidin-2-yl}amino)phenyl]acetonitrile
C20 H21 N7
VKAOLAKWGBXOCQ-UHFFFAOYSA-N
EDO
Query on EDO

Download Ideal Coordinates CCD File 
D [auth A],
G [auth A]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
ACT
Query on ACT

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
NA
Query on NA

Download Ideal Coordinates CCD File 
B [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.175 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.942α = 90
b = 65.507β = 90
c = 102.899γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-05-08
    Type: Initial release
  • Version 1.1: 2018-01-24
    Changes: Database references
  • Version 1.2: 2022-03-30
    Changes: Database references, Derived calculations, Other
  • Version 1.3: 2023-12-20
    Changes: Data collection, Refinement description