4Y85

Crystal structure of COT kinase domain in complex with 5-(5-(1H-indol-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)-1,3,4-oxadiazol-2-amine

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history. 


Literature

The Crystal Structure of Cancer Osaka Thyroid Kinase Reveals an Unexpected Kinase Domain Fold.

Gutmann, S., Hinniger, A., Fendrich, G., Druckes, P., Antz, S., Mattes, H., Mobitz, H., Ofner, S., Schmiedeberg, N., Stojanovic, A., Rieffel, S., Strauss, A., Troxler, T., Glatthar, R., Sparrer, H.

(2015) J Biol Chem 290: 15210-15218

  • DOI: 10.1074/jbc.M115.648097
  • Primary Citation of Related Structures:  
    4Y83, 4Y85

  • PubMed Abstract: 

    • Macrophages are important cellular effectors in innate immune responses and play a major role in autoimmune diseases such as rheumatoid arthritis. Cancer Osaka thyroid (COT) kinase, also known as mitogen-activated protein kinase kinase kinase 8 (MAP3K8) ...

    Macrophages are important cellular effectors in innate immune responses and play a major role in autoimmune diseases such as rheumatoid arthritis. Cancer Osaka thyroid (COT) kinase, also known as mitogen-activated protein kinase kinase kinase 8 (MAP3K8) and tumor progression locus 2 (Tpl-2), is a serine-threonine (ST) kinase and is a key regulator in the production of pro-inflammatory cytokines in macrophages. Due to its pivotal role in immune biology, COT kinase has been identified as an attractive target for pharmaceutical research that is directed at the discovery of orally available, selective, and potent inhibitors for the treatment of autoimmune disorders and cancer. The production of monomeric, recombinant COT kinase has proven to be very difficult, and issues with solubility and stability of the enzyme have hampered the discovery and optimization of potent and selective inhibitors. We developed a protocol for the production of recombinant human COT kinase that yields pure and highly active enzyme in sufficient yields for biochemical and structural studies. The quality of the enzyme allowed us to establish a robust in vitro phosphorylation assay for the efficient biochemical characterization of COT kinase inhibitors and to determine the x-ray co-crystal structures of the COT kinase domain in complex with two ATP-binding site inhibitors. The structures presented in this study reveal two distinct ligand binding modes and a unique kinase domain architecture that has not been observed previously. The structurally versatile active site significantly impacts the design of potent, low molecular weight COT kinase inhibitors.

    Organizational Affiliation: 

    Autoimmunity Transplantation Inflammation, Novartis Institutes for BioMedical Research, Novartis Pharma AG, CH-4002 Basel, Switzerland.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitogen-activated protein kinase kinase kinase 8 A, B, C332Homo sapiensMutation(s): 0 
Gene Names: MAP3K8, COT, ESTF
EC: 2.7.11.25
Find proteins for P41279 (Homo sapiens)
Explore P41279 
Go to UniProtKB:  P41279
NIH Common Fund Data Resources
PHAROS:  P41279
GTEx:  ENSG00000107968
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
499
Query on 499
Download Ideal Coordinates CCD File 
A, B, C
5-[5-(1H-indol-3-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl]-1,3,4-oxadiazol-2-amine
C17 H12 N6 O
UQPVGCWCXPFUTD-UHFFFAOYSA-N		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
499IC50:  13   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 147.978α = 90
b = 85.113β = 91.06
c = 85.964γ = 90
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-05-06
    Type: Initial release
  • Version 1.1: 2015-05-13
    Changes: Database references
  • Version 1.2: 2015-06-24
    Changes: Database references
  • Version 1.3: 2018-06-27
    Changes: Data collection, Derived calculations
  • Version 1.4: 2019-04-24
    Changes: Data collection, Source and taxonomy
  • Version 1.5: 2019-05-29
    Changes: Data collection, Derived calculations