ISDA

Deposition Date 2016-10-13

Release Date 2017-10-11

Last Version Date 2023-11-08

Entry Detail

PDB ID:

5H22

Keywords:

CHAPERONE/INHIBITOR

Title:

Hsp90 alpha N-terminal domain in complex with an inhibitor

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)

Host Organism:

Escherichia coli-Pichia pastoris shuttle vector pPpARG4

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.50 Å

R-Value Free:

0.20

R-Value Work:

0.19

R-Value Observed:

0.19

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:215
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:P07901 Pfam ID:PF13589

Ligand Molecules

7FT

Primary Citation

Synthesis and in vitro antiproliferative activity of C5-benzyl substituted 2-amino-pyrrolo[2,3-d]pyrimidines as potent Hsp90 inhibitors.

Lee, J.H, Shin, S.C, Seo, S.H, Seo, Y.H, Jeong, N, Kim, C.W, Kim, E.E, Keum, G.Show

Bioorg. Med. Chem. Lett. 27 237 241 (2017)

PMID: 27914802 DOI: 10.1016/j.bmcl.2016.11.062

Abstact

A novel series of heat shock protein 90 (Hsp90) inhibitors was identified by X-ray crystal analysis of complex structures at solvent-exposed exit pocket C. The 2-amino-pyrrolo[2,3-d]pyrimidine derivatives, 7-deazapurines substituted with a benzyl moiety at C5, showed potent Hsp90 inhibition and broad-spectrum antiproliferative activity against NCI-60 cancer cell lines. The most potent compound, 6a, inhibited Hsp90 with an IC50 of 36nM and showed a submicromolar mean GI50 value against NCI-60 cell lines. The interaction of 6a at the ATP-binding pocket of Hsp90 was confirmed by X-ray crystallography and Western blot analysis.

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