3RKZ

Discovery of a stable macrocyclic o-aminobenzamide Hsp90 inhibitor capable of significantly decreasing tumor volume in a mouse xenograft model.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5693 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.165 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Discovery of a stable macrocyclic o-aminobenzamide Hsp90 inhibitor which significantly decreases tumor volume in a mouse xenograft model.

Zapf, C.W.Bloom, J.D.Li, Z.Dushin, R.G.Nittoli, T.Otteng, M.Nikitenko, A.Golas, J.M.Liu, H.Lucas, J.Boschelli, F.Vogan, E.Olland, A.Johnson, M.Levin, J.I.

(2011) Bioorg.Med.Chem.Lett. 21: 4602-4607

  • DOI: 10.1016/j.bmcl.2011.05.102

  • PubMed Abstract: 
  • An extension of our previously reported series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. Addition of a second methyl group to the tether provided analogs that show increased potency in binding as well as cell-proliferation ass ...

    An extension of our previously reported series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. Addition of a second methyl group to the tether provided analogs that show increased potency in binding as well as cell-proliferation assays and, more importantly, are stable toward microsomes. We wish to disclose the discovery of a macrocycle which showed impressive biomarker activity 24-h post dosing and which demonstrated prolonged exposure in tumors. When studied in a lung cancer xenograft model, the compound demonstrated significant tumor size reduction.


    Organizational Affiliation

    Medicinal Chemistry, Pfizer, Pearl River, NY 10965, United States. christoph.zapf@pfizer.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein HSP 90-alpha
A
226Homo sapiensMutation(s): 0 
Gene Names: HSP90AA1 (HSP90A, HSPC1, HSPCA)
Find proteins for P07900 (Homo sapiens)
Go to Gene View: HSP90AA1
Go to UniProtKB:  P07900
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
06T
Query on 06T

Download SDF File 
Download CCD File 
A
(5R,6S)-3-(L-alanyl)-5,6,15,15,18-pentamethyl-17-oxo-2,3,4,5,6,7,14,15,16,17-decahydro-1H-12,8-(metheno)[1,5,9]triazacyclotetradecino[1,2-a]indole-9-carboxamide
C28 H39 N5 O3
JSSUIPOIXFFFQU-NJAFHUGGSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
06TIC50: 83 nM (99) BINDINGDB
06TIC50: 83 nM BINDINGMOAD
06TIC50: 83 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5693 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.165 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.001α = 90.00
b = 90.178β = 90.00
c = 97.957γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHASERphasing
StructureStudiodata collection
HKL-2000data scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-07-13
    Type: Initial release
  • Version 1.1: 2011-08-03
    Type: Database references