Development of phenylthiourea derivatives as allosteric inhibitors of pyoverdine maturation enzyme PvdP tyrosinase
作者:Joko P. Wibowo、Zhangping Xiao、Julian M. Voet、Frank J. Dekker、Wim J. Quax
DOI:10.1016/j.bmcl.2020.127409
日期:2020.9
Such antibiotics might be developed by targeting enzymes involved in the iron uptake mechanism because iron is essential for bacterial survival. For P. aeruginosa, pyoverdine has been described as an important virulence factor that plays a key role in iron uptake. Therefore, inhibition of enzymes involved in the pyoverdine synthesis, such as PvdP tyrosinase, can open a new window for the treatment of P
由铜绿假单胞菌引起的感染变得越来越难以治疗,因为这些细菌已经获得了多种抗药性机制,这需要机械上新颖的抗生素。由于铁对于细菌存活是必不可少的,因此可以通过靶向参与铁吸收机制的酶来开发此类抗生素。对于铜绿假单胞菌,吡啶酮已被描述为一种重要的毒力因子,在铁摄取中起关键作用。因此,抑制嘧啶过磷酸酶合成中涉及的酶(例如PvdP酪氨酸酶)可以为铜绿假单胞菌的治疗打开新的窗口。感染。以前,我们报道苯硫脲是第一种具有高微摩尔效价的PvdP酪氨酸酶的变构抑制剂。在本报告中,我们探讨了苯硫脲衍生物对PvdP酪氨酸酶抑制的构效关系(SAR)。这使得能够以亚微摩尔范围(IC 50 = 0.57 + 0.05 µM)的潜能鉴定苯硫脲衍生物(3c)。可以通过分子对接模拟使结合合理化,并证明3c可抑制铜绿假单胞菌PA01培养物中细菌的嘧啶生成和细菌生长。