ISDA

Entry Detail

PDB ID:

3KAB

Keywords:

ISOMERASE

Title:

Structure-guided design of alpha-amino acid-derived Pin1 inhibitors

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2009-10-19

Release Date:

2009-12-22

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.19 Å

R-Value Free:

0.25

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 31 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1
Mutations:R14A
Chain IDs:A
Chain Length:167
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q13526 Pfam ID:PF00397, PF00639 EC:5.2.1.8

Ligand Molecules

12P

4BL

SO4

Primary Citation

Structure-guided design of alpha-amino acid-derived Pin1 inhibitors

Potter, A.J, Ray, S, Gueritz, L, Nunns, C.L, Bryant, C.J, Scrace, S.F, Matassova, N, Baker, L.M, Dokurno, P, Robinson, D.A, Surgenor, A.E, Davis, B, Murray, J.B, Richardson, C.M, Moore, J.D.Show

Bioorg.Med.Chem.Lett. 20 586 590 (2010)

PMID: 19969456 DOI: 10.1016/j.bmcl.2009.11.090

Abstact

The peptidyl prolyl cis/trans isomerase Pin1 is a promising molecular target for anti-cancer therapeutics. Here we report the structure-guided evolution of an indole 2-carboxylic acid fragment hit into a series of alpha-benzimidazolyl-substituted amino acids. Examples inhibited Pin1 activity with IC(50) <100nM, but were inactive on cells. Replacement of the benzimidazole ring with a naphthyl group resulted in a 10-50-fold loss in ligand potency, but these examples downregulated biomarkers of Pin1 activity and blocked proliferation of PC3 cells.

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Primary Citation of related structures