ISDA

Entry Detail

PDB ID:

3R91

Keywords:

CHAPERONE/CHAPERONE INHIBITOR

Title:

Macrocyclic lactams as potent Hsp90 inhibitors with excellent tumor exposure and extended biomarker activity.

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2011-03-24

Release Date:

2011-05-11

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.58 Å

R-Value Free:

0.19

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

I 2 2 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Heat shock protein HSP 90-alpha
Mutations:Delta 16
Chain IDs:A
Chain Length:226
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P07900 Pfam ID:PF13589 EC:3.6.4.10

Ligand Molecules

06H

Primary Citation

Macrocyclic lactams as potent Hsp90 inhibitors with excellent tumor exposure and extended biomarker activity.

Zapf, C.W, Bloom, J.D, McBean, J.L, Dushin, R.G, Nittoli, T, Otteng, M, Ingalls, C, Golas, J.M, Liu, H, Lucas, J, Boschelli, F, Hu, Y, Vogan, E, Levin, J.I.Show

Bioorg.Med.Chem.Lett. 21 3411 3416 (2011)

PMID: 21515049 DOI: 10.1016/j.bmcl.2011.03.112

Abstact

A novel series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. In continuation of our research in this area, macrocyclic amides and lactams were explored to reduce the risk of hERG liabilities. This effort culminated in the discovery of compound 38, which showed a favorable in vitro profile, and efficiently suppressed proliferation of several relevant cell lines. This compound showed prolonged Hsp90-inhibitory activity at least 24 h post-administration, consistent with elevated and prolonged exposure in the tumor.

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Primary Citation of related structures