ISDA

Deposition Date 2008-06-20

Release Date 2008-07-01

Last Version Date 2023-12-13

Entry Detail

PDB ID:

2VWC

Keywords:

CHAPERONE

Title:

STRUCTURE OF THE HSP90 INHIBITOR MACBECIN BOUND TO THE N-TERMINUS OF YEAST HSP90.

Biological Source:

Source Organism:

SACCHAROMYCES CEREVISIAE (Taxon ID: 4932)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.26

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 43 2 2

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:ATP-DEPENDENT MOLECULAR CHAPERONE HSP82
Gene (Uniprot):HSP82
Chain IDs:A
Chain Length:219
Number of Molecules:1
Biological Source:SACCHAROMYCES CEREVISIAE

UniProt ID:P02829 Pfam ID:PF02518 EC:3.6.4.10

Ligand Molecules

BC2

GOL

Primary Citation

Molecular Characterisation of Macbecin as an Hsp90 Inhibitor

Martin, C.J, Gaisser, S, Challis, I.R, Carletti, I, Wilkinson, B, Gregory, M, Prodromou, C, Roe, S.M, Pearl, L.H, Boyd, S.M, Zhang, M.Q.Show

J.Med.Chem. 51 2853 ? (2008)

PMID: 18357975 DOI: 10.1021/JM701558C

Abstact

Macbecin compares favorably to geldanamycin as an Hsp90 inhibitor, being more soluble, stable, more potently inhibiting ATPase activity (IC50 = 2 microM) and binding with higher affinity (Kd = 0.24 microM). Structural studies reveal significant differences in their Hsp90 binding characteristics, and macbecin-induced tumor cell growth inhibition is accompanied by characteristic degradation of Hsp90 client proteins. Macbecin significantly reduced tumor growth rates (minimum T/C: 32%) in a DU145 murine xenograft. Macbecin thus represents an attractive lead for further optimization.

Legend

Protein

Chemical

Disease

Primary Citation of related structures