Enzyme−Artificial Enzyme Interactions as a Means for Discriminating among Structurally Similar Isozymes
摘要:
We describe the design and function of an artificial enzyme-linked receptor (ELR) that can bind different members of the glutathione-S-transferase (GST) enzyme family. The artificial enzyme-enzyme interactions distinctly affect the catalytic activity of the natural enzymes, the biomimetic, or both, enabling the system to discriminate among structurally similar GST isozymes.
The present invention is directed to compounds of the general formula I and pharmaceutically acceptable salts thereof: ##STR1## wherein R=H or lower alkyl; R'=H, lower alkyl, benzyl, CH.sub.2 OH; A=(CH.sub.2).sub.1 to 5, >C(CH.sub.3).sub.2, >C (CH.sub.2).sub.3 ; and X=0 or 1. The present invention is also directed to a method of treating a person for sickle cell anemia comprising administering to the person a therapeutically effective dosage of the above compounds. In addition the invention includes the novel compound: ##STR2## which is inaccessible by synthetic procedures previously described for this general class of compounds.
Discovery of Glutathione S-Transferase Inhibitors Using Dynamic Combinatorial Chemistry
作者:Baolu Shi、Ross Stevenson、Dominic J. Campopiano、Michael F. Greaney
DOI:10.1021/ja058049y
日期:2006.7.1
Protein-directed dynamiccombinatorialchemistry (DCC) relies on reversible chemical reactions that can function under the near-physiological conditions required by the biological target. Few classes of reaction have so far proven effective at generating dynamiccombinatorial libraries (DCLs) under such constraints. In this study, we establish the conjugate addition of thiols to enones as a reaction
Amide derivatives of ethacrynic acid: Synthesis and evaluation as antagonists of Wnt/β-catenin signaling and CLL cell survival
作者:Guangyi Jin、Desheng Lu、Shiyin Yao、Christina C.N. Wu、Jerry X. Liu、Dennis A. Carson、Howard B. Cottam
DOI:10.1016/j.bmcl.2008.12.067
日期:2009.2
A series of amides of ethacrynic acid was prepared and evaluated for their ability to inhibit Wnt signaling and decrease the survival of CLL cells. Several of the most potent derivatives were active in the low micromolar range. Reduction of the alpha,beta-unsaturated carbon-carbon double bond of EA abrogated both the inhibition of Wnt signaling as well as the decrease in CLL survival. Preliminary mechanism of action studies suggest that these derivatives covalently modify sulfhydryl groups present on transcription factors important for Wnt/beta-catenin signaling. (c) 2008 Elsevier Ltd. All rights reserved.
ABRAHAM, DONALD J.;WOLTERSDORF, OTTO W. , JR.;CRAGOE, EDWARD J. , JR.
作者:ABRAHAM, DONALD J.、WOLTERSDORF, OTTO W. , JR.、CRAGOE, EDWARD J. , JR.