<i>In Situ</i>
Assembly of Choline Acetyltransferase Ligands by a Hydrothiolation Reaction Reveals Key Determinants for Inhibitor Design
作者:Daniel Wiktelius、Anders Allgardsson、Tomas Bergström、Norman Hoster、Christine Akfur、Nina Forsgren、Christian Lejon、Mattias Hedenström、Anna Linusson、Fredrik Ekström
DOI:10.1002/anie.202011989
日期:2021.1.11
tunnel of ChAT and interactions with a hydrophobic pocket near the choline binding site have major implications for the molecular recognition of inhibitors. Our findings clarify the inhibition mechanism of AVPs, establish a drug modality that exploits a target‐catalysed reaction between exogenous and endogenous precursors, and provide new directions for the development of ChAT inhibitors with improved potency
潜在的药物靶标胆碱乙酰基转移酶(ChAT)催化胆碱能神经元,T细胞和B细胞中神经递质乙酰胆碱的产生。在这里,我们表明,最广泛研究的ChAT抑制剂类芳基乙烯基吡啶(AVPs)在不常见的辅酶A依赖的氢硫基化反应中充当底物。这原位合成产生的加合物是实际的酶抑制剂。加合物深埋在ChAT的活性位点通道中,与胆碱结合位点附近的疏水口袋的相互作用对抑制剂的分子识别具有重要意义。我们的发现阐明了AVP的抑制机制,建立了一种利用外源性和内源性前体之间的靶标催化反应的药物模式,并为开发具有更高效能和生物活性的ChAT抑制剂提供了新的方向。