Off-Rate Screening (ORS) By Surface Plasmon Resonance. An Efficient Method to Kinetically Sample Hit to Lead Chemical Space from Unpurified Reaction Products
摘要:
The dissociation rate constant k(d) (off-rate) is the component of ligand protein binding with the most significant potential to enhance compound potency. Here we provide theoretical and empirical data to show that this parameter can be determined accurately from unpurified reaction products containing designed test compounds. This screening protocol is amenable to parallel chemistry, provides efficiencies of time and materials, and complements existing methodologies for the hit-to-lead phase in fragment-based drug discovery.
Structure-guided design of α-amino acid-derived Pin1 inhibitors
作者:Andrew J. Potter、Stuart Ray、Louisa Gueritz、Claire L. Nunns、Christopher J. Bryant、Simon F. Scrace、Natalia Matassova、Lisa Baker、Pawel Dokurno、David A. Robinson、Allan E. Surgenor、Ben Davis、James B. Murray、Christine M. Richardson、Jonathan D. Moore
DOI:10.1016/j.bmcl.2009.11.090
日期:2010.1
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 IC50 < 100 nM, 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. (C) 2009 Elsevier Ltd. All rights reserved.
Off-Rate Screening (ORS) By Surface Plasmon Resonance. An Efficient Method to Kinetically Sample Hit to Lead Chemical Space from Unpurified Reaction Products
作者:James B. Murray、Stephen D. Roughley、Natalia Matassova、Paul A. Brough
DOI:10.1021/jm401848a
日期:2014.4.10
The dissociation rate constant k(d) (off-rate) is the component of ligand protein binding with the most significant potential to enhance compound potency. Here we provide theoretical and empirical data to show that this parameter can be determined accurately from unpurified reaction products containing designed test compounds. This screening protocol is amenable to parallel chemistry, provides efficiencies of time and materials, and complements existing methodologies for the hit-to-lead phase in fragment-based drug discovery.
Porretta; Scalzo; Chimenti, Farmaco, Edizione Scientifica, 1987, vol. 42, # 5, p. 629 - 639