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3kab

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3kab, resolution 2.19Å ()
Ligands: , ,
Gene: PIN1 (Homo sapiens)
Activity: Peptidylprolyl isomerase, with EC number 5.2.1.8
Related: 3kac, 3kad, 3kaf, 3kag, 3kah, 3kai
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml


Contents

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

Publication Abstract from PubMed

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.

Structure-guided design of alpha-amino acid-derived Pin1 inhibitors., Potter AJ, Ray S, Gueritz L, Nunns CL, Bryant CJ, Scrace SF, Matassova N, Baker L, Dokurno P, Robinson DA, Surgenor AE, Davis B, Murray JB, Richardson CM, Moore JD, Bioorg Med Chem Lett. 2010 Jan 15;20(2):586-90. Epub 2009 Nov 22. PMID:19969456

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

Function

[PIN1_HUMAN] Essential PPIase that regulates mitosis presumably by interacting with NIMA and attenuating its mitosis-promoting activity. Displays a preference for an acidic residue N-terminal to the isomerized proline bond. Catalyzes pSer/Thr-Pro cis/trans isomerizations. Down-regulates kinase activity of BTK. Can transactivate multiple oncogenes and induce centrosome amplification, chromosome instability and cell transformation. Required for the efficient dephosphorylation and recycling of RAF1 after mitogen activation.[1] [2] [3]

About this Structure

3kab is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

  • Potter AJ, Ray S, Gueritz L, Nunns CL, Bryant CJ, Scrace SF, Matassova N, Baker L, Dokurno P, Robinson DA, Surgenor AE, Davis B, Murray JB, Richardson CM, Moore JD. Structure-guided design of alpha-amino acid-derived Pin1 inhibitors. Bioorg Med Chem Lett. 2010 Jan 15;20(2):586-90. Epub 2009 Nov 22. PMID:19969456 doi:10.1016/j.bmcl.2009.11.090
  1. ↑ Dougherty MK, Muller J, Ritt DA, Zhou M, Zhou XZ, Copeland TD, Conrads TP, Veenstra TD, Lu KP, Morrison DK. Regulation of Raf-1 by direct feedback phosphorylation. Mol Cell. 2005 Jan 21;17(2):215-24. PMID:15664191 doi:10.1016/j.molcel.2004.11.055
  2. ↑ Yu L, Mohamed AJ, Vargas L, Berglof A, Finn G, Lu KP, Smith CI. Regulation of Bruton tyrosine kinase by the peptidylprolyl isomerase Pin1. J Biol Chem. 2006 Jun 30;281(26):18201-7. Epub 2006 Apr 27. PMID:16644721 doi:10.1074/jbc.M603090200
  3. ↑ Lee TH, Chen CH, Suizu F, Huang P, Schiene-Fischer C, Daum S, Zhang YJ, Goate A, Chen RH, Zhou XZ, Lu KP. Death-associated protein kinase 1 phosphorylates Pin1 and inhibits its prolyl isomerase activity and cellular function. Mol Cell. 2011 Apr 22;42(2):147-59. doi: 10.1016/j.molcel.2011.03.005. Epub 2011 , Apr 14. PMID:21497122 doi:10.1016/j.molcel.2011.03.005

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