4Y8D

Crystal structure of Cyclin-G associated kinase (GAK) complexed with selective 12i inhibitor

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

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Literature

Selective Inhibitors of Cyclin G Associated Kinase (GAK) as Anti-Hepatitis C Agents.

Kovackova, S., Chang, L., Bekerman, E., Neveu, G., Barouch-Bentov, R., Chaikuad, A., Heroven, C., Sala, M., De Jonghe, S., Knapp, S., Einav, S., Herdewijn, P.

(2015) J Med Chem 58: 3393-3410

  • DOI: 10.1021/jm501759m
  • Primary Citation of Related Structures:  
    4Y8D

  • PubMed Abstract: 

    • Cyclin G associated kinase (GAK) emerged as a promising drug target for the treatment of viral infections. However, no potent and selective GAK inhibitors have been reported in the literature to date. This paper describes the discovery of isothiazolo[5,4-b]pyridines as selective GAK inhibitors, with the most potent congeners displaying low nanomolar binding affinity for GAK ...

    Cyclin G associated kinase (GAK) emerged as a promising drug target for the treatment of viral infections. However, no potent and selective GAK inhibitors have been reported in the literature to date. This paper describes the discovery of isothiazolo[5,4-b]pyridines as selective GAK inhibitors, with the most potent congeners displaying low nanomolar binding affinity for GAK. Cocrystallization experiments revealed that these compounds behaved as classic type I ATP-competitive kinase inhibitors. In addition, we have demonstrated that these compounds exhibit a potent activity against hepatitis C virus (HCV) by inhibiting two temporally distinct steps in the HCV life cycle (i.e., viral entry and assembly). Hence, these GAK inhibitors represent chemical probes to study GAK function in different disease areas where GAK has been implicated (including viral infection, cancer, and Parkinson's disease).

    Organizational Affiliation: 

    ‡Interface Valorisation Platform, KU Leuven, Kapucijnenvoer 33, 3000 Leuven, Belgium.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cyclin-G-associated kinaseA,
C [auth B]		340Homo sapiensMutation(s): 0 
Gene Names: GAK
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O14976 (Homo sapiens)
Explore O14976 
Go to UniProtKB:  O14976
PHAROS:  O14976
Entity Groups  
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UniProt GroupO14976
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
nanobodyB [auth C],
D		140Lama glamaMutation(s): 0 
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Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
49J
Query on 49J
Download Ideal Coordinates CCD File 
E [auth A],
H [auth B]		2-methoxy-4-[3-(morpholin-4-yl)[1,2]thiazolo[4,3-b]pyridin-6-yl]aniline
C17 H18 N4 O2 S
AAUCXXCMBFZYRT-UHFFFAOYSA-N		 Ligand Interaction
EDO
Query on EDO
Download Ideal Coordinates CCD File 
F [auth C],
G [auth C],
I [auth B],
J [auth D],
K [auth D]		1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
49J BindingDB:  4Y8D Kd: 8.9 (nM) from 1 assay(s)
IC50: 51 (nM) from 1 assay(s)
Binding MOAD:  4Y8D Kd: 8.9 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.706α = 109.7
b = 68.703β = 95.08
c = 89.868γ = 99.04
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-04-08
    Type: Initial release
  • Version 1.1: 2015-04-22
    Changes: Database references
  • Version 1.2: 2015-05-06
    Changes: Database references