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PknB和STP作为黄素在对抗Trueperella pyogenes感染中的潜在点

Yueting Guo¹, Hongyu Su¹, Lihui Yu¹

¹Key Laboratory of Livestock Infectious Diseases, Ministry of Education, and Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Affairs, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, 120 Dongling Road, Shenyang, 110866, China.

Scientific reports

|July 3, 2025

概括

素通过向氨酸/氨酸蛋白激酶B (PknB) 和氨酸/氨酸酸酶 (STP) 来有效抑制Trueperella pyogenes. 这种天然化合物降低了基因表达和酶活性,为新的抗菌药物开发提供了潜力.

科学领域:

微生物学微生物学
生物化学生物化学
药理学药理学是指药理学的学科.

背景情况:

特鲁佩雷拉 (Trueperella pyogenes) 是一种机会性病原体,在动物和人类中引起感染,具有显著的耐药性.
血清/氨酸蛋白激酶 (STKs) 和酸酶 (STPs) 对细菌生理学和发病过程至关重要,具有潜在的抗菌药物标.

研究的目的:

为了研究天然的黄类物质黄对T. pyogenes. pyogenes中的/氨酸蛋白激酶B (PknB) 和/氨酸酸酶 (STP) 的作用.
评估黄素作为PknB/STP抑制剂的潜力,用于开发抗药耐药性感染的新型抗菌剂.

主要方法:

用黄素对T. pyogenes的治疗以及对pknB和stp基因转录和翻译水平的分析.
进行分子对接模拟,以预测素和PknB/STP之间的相互作用模式.
在体外测试以确定黄素对PknB和STP的结合亲和力 (K_D) 和抑制活性.

主要成果:

氨酸显著降低了T. pyogenes中pknB和stp基因的转录和翻译.
分子对接表明与PknB的疏水相互作用和与STP的键.
卢特在PknB和STP活动上表现出抑制作用,K_D值分别为3.125 × 10-4 M和1.128 × 10-5 M.

结论:

氨酸在多个水平上抑制T. pyogenes中的PknB和STP,包括基因表达和酶活性.
氨酸作为PknB/STP抑制剂对开发新治疗策略对抗耐药性细菌感染有希望.

关键词:

真贝拉 (Trueperella pyogenes) 是一种天然的植物.目标药物是药物目标.抑制剂的抑制剂卢特奥林是什么意思?卢特奥林是什么意思?这就是PknB的意思.在 STP STP 中.

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