Penicillin Derivatives Inhibit the SARS-CoV-2 Main Protease by Reaction with Its Nucleophilic Cysteine
作者:Tika R. Malla、Lennart Brewitz、Dorian-Gabriel Muntean、Hiba Aslam、C. David Owen、Eidarus Salah、Anthony Tumber、Petra Lukacik、Claire Strain-Damerell、Halina Mikolajek、Martin A. Walsh、Christopher J. Schofield
DOI:10.1021/acs.jmedchem.1c02214
日期:2022.6.9
nucleophilic serine and cysteine proteases. We describe the synthesis of penicillin derivatives which are potent Mpro inhibitors and investigate their mechanism of inhibition using mass spectrometric and crystallographic analyses. The results suggest that β-lactams have considerable potential as Mpro inhibitors via a mechanism involving reaction with the nucleophilic cysteine to form a stable acyl–enzyme
SARS-CoV-2 主要蛋白酶 (M pro ) 是治疗 COVID-19 的药物化学靶标。鉴于β-内酰胺作为细菌亲核酶抑制剂的临床功效,它们作为病毒亲核丝氨酸和半胱氨酸蛋白酶的抑制剂引起了人们的兴趣。我们描述了青霉素衍生物的合成,它们是有效的 M pro抑制剂,并使用质谱和晶体分析研究了其抑制机制。结果表明,β-内酰胺作为 M pro抑制剂具有相当大的潜力,其机制涉及与亲核半胱氨酸反应形成稳定的酰基-酶复合物,如晶体学分析所示。结果强调了利用 β-内酰胺和相关酰化剂的亲核催化抑制病毒蛋白酶的潜力。