Synthesis, Characterization, and Antimicrobial Activity of Ultra-Short Cationic β-Peptides
作者:Rubina Chowdhary、Mohamad Mosa Mubarak、Hadiya A. Kantroo、Junaid ur Rahim、Abbass Malik、Aminur Rahman Sarkar、Gulnaz Bashir、Zahoor Ahmad、Rajkishor Rai
DOI:10.1021/acsinfecdis.3c00238
日期:2023.7.14
conventional antibiotics. The antimicrobial peptides show potential as small antibiotic molecules. The stability of peptides is a primary concern for the use of peptides as drugs. Introducing β-amino acids into peptide sequences can be useful in preventing biological degradation by proteolytic enzymes. Herein, we describe the synthesis, characterization, and antimicrobial activity of ultra-short cationic
由于对传统抗生素的耐药性迅速增长,迫切需要开发新的抗生素。抗菌肽显示出作为小抗生素分子的潜力。肽的稳定性是肽作为药物使用的首要考虑因素。将 β-氨基酸引入肽序列可有效防止蛋白水解酶的生物降解。在此,我们描述了超短阳离子β-肽LA-β 3,3 -Pip-β 2,2 -Ac 6 c-PEA, P1的合成、表征和抗菌活性;LA-β 3,3 -Pip(G)-β 2,2 -Ac 6 c-PEA, P2 ; LA U -β 3,3 -Pip-β 2,2 -Ac 6 c-PEA, P3和 LA U -β 3,3 -Pip(G)-β 2,2 -Ac 6 c-PEA, P4。针对革兰氏阴性菌、革兰氏阳性菌、MRSA 和多重耐药大肠杆菌(MDR-大肠杆菌) 评估了肽P1 – P4。P3对大肠杆菌、表皮葡萄球菌、金黄色葡萄球菌、肺炎克雷伯菌、变形链球菌和粪肠球菌表现出最强的抗菌活性,MIC 值为 0.5、2、0