Abstract:
:SmltD is an ATP-dependent ligase that catalyzes the condensation of UDP-MurNAc-l-Ala and l-Glu to form UDP-MurNAc-l-Ala-l-Glu, in the newly discovered peptidoglycan biosynthesis pathway of a Gram-negative multiple-drug-resistant pathogen, Stenotrophomonas maltophilia. Phytochemical investigation of the 70% ethanol extract from Woodfordia fruticosa flowers collected in Myanmar led to the identification of anti-SmltD active flavonoids, kaempferol 3-O-(6''-galloyl)-β-d-glucopyranoside (1), astragalin (2), and juglalin (3). Among them, 1 showed the most potent SmltD inhibitory activity. An enzyme steady-state kinetic study revealed that 1 exerted competitive inhibition with respect to ATP. The results of this study provided an attractive foundation for the further development of novel inhibitors of SmltD.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Lee YE,Kodama T,Win NN,Ki DW,Hoang NN,Wong CP,Lae KZW,Ngwe H,Dairi T,Morita Hdoi
10.1016/j.bmcl.2021.127787subject
Has Abstractpub_date
2021-01-15 00:00:00pages
127787eissn
0960-894Xissn
1464-3405pii
S0960-894X(21)00013-5journal_volume
36pub_type
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