6TW2

Re-refined crystal structure of di-phosphorylated human CLK1 in complex with a novel substituted indole inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history

Re-refinement Note

This entry reflects an alternative modeling of the original data in: 2VAG


Literature

A Conserved Kinase-Based Body-Temperature Sensor Globally Controls Alternative Splicing and Gene Expression.

Haltenhof, T.Kotte, A.De Bortoli, F.Schiefer, S.Meinke, S.Emmerichs, A.K.Petermann, K.K.Timmermann, B.Imhof, P.Franz, A.Loll, B.Wahl, M.C.Preussner, M.Heyd, F.

(2020) Mol Cell 78: 57-69.e4

  • DOI: https://doi.org/10.1016/j.molcel.2020.01.028
  • Primary Citation of Related Structures:  
    6TW2

  • PubMed Abstract: 

    Homeothermic organisms maintain their core body temperature in a narrow, tightly controlled range. Whether and how subtle circadian oscillations or disease-associated changes in core body temperature are sensed and integrated in gene expression programs remain elusive. Furthermore, a thermo-sensor capable of sensing the small temperature differentials leading to temperature-dependent sex determination (TSD) in poikilothermic reptiles has not been identified. Here, we show that the activity of CDC-like kinases (CLKs) is highly responsive to physiological temperature changes, which is conferred by structural rearrangements within the kinase activation segment. Lower body temperature activates CLKs resulting in strongly increased phosphorylation of SR proteins in vitro and in vivo. This globally controls temperature-dependent alternative splicing and gene expression, with wide implications in circadian, tissue-specific, and disease-associated settings. This temperature sensor is conserved across evolution and adapted to growth temperatures of diverse poikilotherms. The dynamic temperature range of reptilian CLK homologs suggests a role in TSD.


  • Organizational Affiliation

    Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195 Berlin, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Dual specificity protein kinase CLK1A [auth E]339Homo sapiensMutation(s): 1 
Gene Names: CLK1CLK
EC: 2.7.12.1
UniProt & NIH Common Fund Data Resources
Find proteins for P49759 (Homo sapiens)
Explore P49759 
Go to UniProtKB:  P49759
PHAROS:  P49759
GTEx:  ENSG00000013441 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49759
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
V25
Query on V25

Download Ideal Coordinates CCD File 
B [auth E]ethyl 3-[(E)-2-amino-1-cyanoethenyl]-6,7-dichloro-1-methyl-1H-indole-2-carboxylate
C15 H13 Cl2 N3 O2
CXJCGSPAPOTTSF-VURMDHGXSA-N
Modified Residues  2 Unique
IDChains TypeFormula2D DiagramParent
SEP
Query on SEP
A [auth E]L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
A [auth E]L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.95α = 90
b = 64.108β = 118.17
c = 78.894γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-02-05
    Type: Initial release
  • Version 1.1: 2020-02-26
    Changes: Database references
  • Version 1.2: 2020-04-15
    Changes: Database references
  • Version 1.3: 2024-01-24
    Changes: Data collection, Database references, Refinement description
  • Version 1.4: 2024-10-09
    Changes: Structure summary