Inhibition of Carbonic Anhydrase by Substituted Benzenesulfonamides. A Reinvestigation by QSAR and Molecular Graphics Analysis
作者:
Angelo Carotti,
Cosima Raguseo,
Francesco Campagna,
Robert Langridge,
Teri E. Klein,
期刊:
Quantitative Structure‐Activity Relationships
(WILEY Available online 1989)
卷期:
Volume 8,
issue 1
页码: 1-10
ISSN:0931-8771
年代: 1989
DOI:10.1002/qsar.19890080102
出版商: WILEY‐VCH Verlag
关键词: Carbonic anhydrase;benzenesulfonamides;QSAR;3‐D molecular graphics;enzyme inhibition
数据来源: WILEY
摘要:
AbstractThe inhibition of Bovine Carbonic Anhydrase B (BCA‐B) by an appropriately designed set of meta‐ and para‐substituted benzenesulfonamides was studied. From the results the following quantitative structure‐activity relationship was derived: log 1/Ki = 0.95 σ + 0.54 π – 0.35 B5,3+ 6.29. In this equation Ki is the inhibition constant, σ is the Hammett constant, π is the hydrophobic parameter and B5,3is the sterimol steric parameter for the meta substituents. Using this equation we designed, synthesized and successfully predicted Ki for a new congener intended to maximize the inhibitory potency (1/Ki). The interactions involved in the enzyme‐inhibitors binding as suggested by the correlation equation, have been tentatively interpreted using computer built 3‐D molecular models based on the published X‐ray crystallographic coordinates of the free and inhibitor‐bound carbonic anhydrase. The results from our analyses have been compared with those obtained in some p
点击下载:
PDF
(1095KB)
返 回