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First-Time Identification of the PPAT Protein as a Novel Antibacterial Target: Antimicrobial and Antioxidant Insights from E. purpurea   
Yazarlar (5)
Safiye Elif Korcan
Nevin Cankaya
Ibrahim Bulduk
Prof. Dr. Serap YALÇIN AZARKAN Prof. Dr. Serap YALÇIN AZARKAN
Kırşehir Ahi Evran Üniversitesi, Türkiye
Sah Ismail Civi
Devamını Göster
Özet
Echinacea purpurea (Asteraceae) is a perennial medicinal herb with immune-stimulating and anti-inflammatory properties. In this study, the antioxidant and antibacterial properties of the organs of the E. purpurea plant were investigated, and significant amounts of total phenolic and total flavonoid contents were detected in flower extracts. It was determined that the DPPH% values of the water extract were higher than the values of methanol extracts. It was observed that Fe reduction capacity increased as the concentration increased in all plant extracts. The highest antimicrobial activity was determined to be against Pseudomonas aeruginosa (35 mm) and Klebsiella pneumonia (20 mm) at the petal (P)-methanol extract. In HPLC analysis of component-based phenolic substances, protocatechuic acid, caffeic acid, coumaric acid, chlorogenic acid, and ferulic acid were determined in the extracts. The lowest protein-ligand binding energy (kcal/mol) was found to be -9.6 kcal/mol in chlorogenic acid. Chlorogenic acid can bind with PPAT's T10-(B)-OG1, W12-(b), I127-(B)-O, and S129-(B)-OG and P88-(B)-HN2, T10-(B)-N, F11-(b)-N, D12-(B)-N, S129-(B)-N, and K12-(B)-NZ amino acid residues via hydrogen bonds. The evidence collected indicates that chlorogenic acid inhibits phosphopantetheine adenylyltransferase (PPAT), validating PPAT as a potential target for antibacterial therapy for the first time. The development of selective inhibitors such as chlorogenic acid of bacterial PPAT is promising for the discovery of new antibiotics.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı ACS OMEGA
Dergi ISSN 2470-1343 Wos Dergi Scopus Dergi
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 05-2025
Cilt No 10
Sayı 21
Sayfalar 21499 / 21509
Doi Numarası 10.1021/acsomega.5c00273