ISDA: 3O1G

Deposition Date 2010-07-21

Release Date 2010-10-06

Last Version Date 2024-11-06

Entry Detail

PDB ID:

3O1G

Keywords:

HYDROLASE

Title:

Cathepsin K covalently bound to a 2-cyano pyrimidine inhibitor with a benzyl P3 group.

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Cricetulus griseus

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.65 Å

R-Value Free:

0.19

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 43 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cathepsin K
Gene (Uniprot):CTSK
Chain IDs:A
Chain Length:215
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P43235 Pfam ID:PF00112 EC:3.4.22.38

Ligand Molecules

O75

SO4

Primary Citation

Optimisation of 2-cyano-pyrimidine inhibitors of cathepsin K: improving selectivity over hERG.

Rankovic, Z, Cai, J, Kerr, J, Fradera, X, Robinson, J, Mistry, A, Finlay, W, McGarry, G, Andrews, F, Caulfield, W, Cumming, I, Dempster, M, Waller, J, Arbuckle, W, Anderson, M, Martin, I, Mitchell, A, Long, C, Baugh, M, Westwood, P, Kinghorn, E, Jones, P, Uitdehaag, J.C, van Zeeland, M, Potin, D, Saniere, L, Fouquet, A, Chevallier, F, Deronzier, H, Dorleans, C, Nicolai, E.Show

Bioorg.Med.Chem.Lett. 20 6237 6241 (2010)

PMID: 20843687 DOI: 10.1016/j.bmcl.2010.08.101

Abstact

Several structure-guided optimisation strategies were explored in order to improve the hERG selectivity profile of cathepsin K inhibitor 1, whilst maintaining its otherwise excellent in vitro and in vivo profile. Ultimately, attenuation of clogP and pK(a) properties proved a successful approach and led to the discovery of a potent analogue 23, which, in addition to the desired selectivity over hERG (>1000-fold), displayed a highly attractive overall profile.

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