6B5J

TNNI3K complexed with a 4,6-diaminopyrimidine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.97 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.204 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

4,6-Diaminopyrimidines as Highly Preferred Troponin I-Interacting Kinase (TNNI3K) Inhibitors.

Philp, J.Lawhorn, B.G.Graves, A.P.Shewchuk, L.Rivera, K.L.Jolivette, L.J.Holt, D.A.Gatto, G.J.Kallander, L.S.

(2018) J Med Chem 61: 3076-3088

  • DOI: 10.1021/acs.jmedchem.8b00125
  • Primary Citation of Related Structures:  
    6B5J

  • PubMed Abstract: 
  • Structure-guided progression of a purine-derived series of TNNI3K inhibitors directed design efforts that produced a novel series of 4,6-diaminopyrimidine inhibitors, an emerging kinase binding motif. Herein, we report a detailed understanding of the intrinsic conformational preferences of the scaffold, which impart high specificity for TNNI3K ...

    Structure-guided progression of a purine-derived series of TNNI3K inhibitors directed design efforts that produced a novel series of 4,6-diaminopyrimidine inhibitors, an emerging kinase binding motif. Herein, we report a detailed understanding of the intrinsic conformational preferences of the scaffold, which impart high specificity for TNNI3K. Further manipulation of the template based on the conformational analysis and additional structure-activity relationship studies provided enhancements in kinase selectivity and pharmacokinetics that furnished an advanced series of potent inhibitors. The optimized compounds (e.g., GSK854) are suitable leads for identifying new cardiac medicines and have been employed as in vivo tools in investigational studies aimed at defining the role of TNNI3K within heart failure.


    Organizational Affiliation

    Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase TNNI3KA, B, C, D311Homo sapiensMutation(s): 0 
Gene Names: TNNI3KCARK
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q59H18 (Homo sapiens)
Explore Q59H18 
Go to UniProtKB:  Q59H18
PHAROS:  Q59H18
GTEx:  ENSG00000116783 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ59H18
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CV4
Query on CV4

Download Ideal Coordinates CCD File 
E [auth A],
F [auth B],
G [auth C],
H [auth D]
N-methyl-3-[(6-{[4-(trifluoromethyl)phenyl]amino}pyrimidin-4-yl)amino]benzene-1-sulfonamide
C18 H16 F3 N5 O2 S
UNIMPGVNGHKXEY-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
CV4 BindingDB:  6B5J IC50: 79 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.97 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.204 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.615α = 90
b = 108.193β = 94.71
c = 92.65γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
REFMACphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-04-04
    Type: Initial release
  • Version 1.1: 2018-04-25
    Changes: Data collection, Database references