5M6U

HUMAN PI3KDELTA IN COMPLEX WITH LASW1579


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.257 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery of a Potent, Selective, and Orally Available PI3K delta Inhibitor for the Treatment of Inflammatory Diseases.

Erra, M.Taltavull, J.Greco, A.Bernal, F.J.Caturla, J.F.Gracia, J.Dominguez, M.Sabate, M.Paris, S.Soria, S.Hernandez, B.Armengol, C.Cabedo, J.Bravo, M.Calama, E.Miralpeix, M.Lehner, M.D.

(2017) ACS Med Chem Lett 8: 118-123

  • DOI: 10.1021/acsmedchemlett.6b00438
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The delta isoform of the phosphatidylinositol 3-kinase (PI3Kδ) has been shown to have an essential role in specific immune cell functions and thus represents a potential therapeutic target for autoimmune and inflammatory diseases. Herein, the optimiz ...

    The delta isoform of the phosphatidylinositol 3-kinase (PI3Kδ) has been shown to have an essential role in specific immune cell functions and thus represents a potential therapeutic target for autoimmune and inflammatory diseases. Herein, the optimization of a series of pyrrolotriazinones as potent and selective PI3Kδ inhibitors is described. The main challenge of the optimization process was to identify an orally available compound with a good pharmacokinetic profile in preclinical species that predicted a suitable dosing regimen in humans. Structure-activity relationships and structure-property relationships are discussed. This medicinal chemistry exercise led to the identification of LAS191954 as a candidate for clinical development.


    Organizational Affiliation

    Medicinal Chemistry and Screening, Pharmacokinetics and Metabolism, Systems Biology, and Respiratory Therapeutic Area, Almirall R&D , Barcelona 08980, Spain.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoformA1011Homo sapiensMutation(s): 0 
Gene Names: PIK3CD
EC: 2.7.1.153
Find proteins for O00329 (Homo sapiens)
Explore O00329 
Go to UniProtKB:  O00329
NIH Common Fund Data Resources
PHAROS  O00329
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol 3-kinase regulatory subunit alphaB724Homo sapiensMutation(s): 0 
Gene Names: PIK3R1GRB1
Find proteins for P27986 (Homo sapiens)
Explore P27986 
Go to UniProtKB:  P27986
NIH Common Fund Data Resources
PHAROS  P27986
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
7KA
Query on 7KA

Download CCD File 
A
4-azanyl-6-[[(1~{S})-1-(4-oxidanylidene-3-phenyl-pyrrolo[2,1-f][1,2,4]triazin-2-yl)ethyl]amino]pyrimidine-5-carbonitrile
C19 H16 N8 O
MDMKWYWCJZMADI-LBPRGKRZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.257 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.493α = 90
b = 113.212β = 90
c = 144.321γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-02-01
    Type: Initial release
  • Version 1.1: 2019-03-06
    Changes: Data collection