ISDA

Deposition Date 2013-11-04

Release Date 2014-01-15

Last Version Date 2024-02-28

Entry Detail

PDB ID:

4NH8

Keywords:

CHAPERONE

Title:

Correlation between chemotype-dependent binding conformations of HSP90 alpha/beta and isoform selectivity

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.65 Å

R-Value Free:

0.18

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)
Molecule:Heat shock protein HSP 90-alpha
Gene (Uniprot):HSP90AA1
Chain IDs:A
Chain Length:233
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P07900 Pfam ID:PF13589 EC:3.6.4.10

Ligand Molecules

2LC

Primary Citation

Correlation between chemotype-dependent binding conformations of HSP90 alpha / beta and isoform selectivity-Implications for the structure-based design of HSP90 alpha / beta selective inhibitors for treating neurodegenerative diseases.

Ernst, J.T, Liu, M, Zuccola, H, Neubert, T, Beaumont, K, Turnbull, A, Kallel, A, Vought, B, Stamos, D.Show

Bioorg.Med.Chem.Lett. 24 204 208 (2014)

PMID: 24332488 DOI: 10.1016/j.bmcl.2013.11.036

Abstact

HSP90 continues to be a target of interest for neurodegeneration indications. Selective knockdown of the HSP90 cytosolic isoforms α and β is sufficient to reduce mutant huntingtin protein levels in vitro. Chemotype-dependent binding conformations of HSP90α/β appear to strongly influence isoform selectivity. The rational design of HSP90α/β inhibitors selective versus the mitochondrial (TRAP1) and endoplasmic reticulum (GRP94) isoforms offers a potential mitigating strategy for mechanism-based toxicities. Better tolerated HSP90 inhibitors would be attractive for targeting chronic neurodegenerative diseases such as Huntington's disease.

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Protein

Chemical

Disease

Primary Citation of related structures