Structure–Activity Relationship Studies of Argiotoxins: Selective and Potent Inhibitors of Ionotropic Glutamate Receptors
作者:Mette H. Poulsen、Simon Lucas、Tinna B. Bach、Anne F. Barslund、Claudius Wenzler、Christel B. Jensen、Anders S. Kristensen、Kristian Strømgaard
DOI:10.1021/jm301602d
日期:2013.2.14
open-channel blocker of ionotropicglutamate (iGlu) receptors. Here, three series of analogues were designed to exploit selectivity among iGlu receptors, taking advantage of a recently developed solid-phase synthetic methodology for the synthesis of ArgTX-636 and analogues. Initially, the importance of secondary amino groups in the polyamine chain was studied by the synthesis of systematically modified
Design and Exploration of Novel Boronic Acid Inhibitors Reveals Important Interactions with a Clavulanic Acid-Resistant Sulfhydryl-Variable (SHV) β-Lactamase
作者:Marisa L. Winkler、Elizabeth A. Rodkey、Magdalena A. Taracila、Sarah M. Drawz、Christopher R. Bethel、Krisztina M. Papp-Wallace、Kerri M. Smith、Yan Xu、Jeffrey R. Dwulit-Smith、Chiara Romagnoli、Emilia Caselli、Fabio Prati、Focco van den Akker、Robert A. Bonomo
DOI:10.1021/jm301490d
日期:2013.2.14
X-ray crystallography revealed two conformations of Arg-234 and Ser-130 in SHV K234R. The movement of Ser-130 is the principal cause of the observed clavulanate resistance. A panel of boronic acidinhibitors was designed and tested against SHV-1 and SHV K234R. A chiral ampicillin analogue was discovered to have a 2.4 ± 0.2 nM Ki for SHV K234R; the chiral ampicillin analogue formed a more complex hydrogen-bonding