ISDA

Deposition Date 2013-05-30

Release Date 2013-10-23

Last Version Date 2024-05-08

Entry Detail

PDB ID:

4BQG

Keywords:

CHAPERONE

Title:

structure of HSP90 with an inhibitor bound

Biological Source:

Source Organism:

HOMO SAPIENS (Taxon ID: 9606)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.23

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

I 2 2 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HSP90AA1 PROTEIN
Chain IDs:A
Chain Length:230
Number of Molecules:1
Biological Source:HOMO SAPIENS

UniProt ID:P07900 Pfam ID:PF13589

Ligand Molecules

50Q

Primary Citation

Discovery of Nms-E973 as Novel, Selective and Potent Inhibitor of Heat Shock Protein 90 (Hsp90).

Brasca, M.G, Mantegani, S, Amboldi, N, Bindi, S, Caronni, D, Casale, E, Ceccarelli, W, Colombo, N, De Ponti, A, Donati, D, Ermoli, A, Fachin, G, Felder, E.R, Ferguson, R.D, Fiorelli, C, Guanci, M, Isacchi, A, Pesenti, E, Polucci, P, Riceputi, L, Sola, F, Visco, C, Zuccotto, F, Fogliatto, G.Show

Bioorg.Med.Chem. 21 7047 ? (2013)

PMID: 24100158 DOI: 10.1016/J.BMC.2013.09.018

Abstact

Novel small molecule inhibitors of heat shock protein 90 (Hsp90) were discovered with the help of a fragment based drug discovery approach (FBDD) and subsequent optimization with a combination of structure guided design, parallel synthesis and application of medicinal chemistry principles. These efforts led to the identification of compound 18 (NMS-E973), which displayed significant efficacy in a human ovarian A2780 xenograft tumor model, with a mechanism of action confirmed in vivo by typical modulation of known Hsp90 client proteins, and with a favorable pharmacokinetic and safety profile.

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Primary Citation of related structures