Quercitrin, an Inhibitor of Sortase A, Interferes with the Adhesion of Staphylococcal aureus

Bibliographic Details
Title: Quercitrin, an Inhibitor of Sortase A, Interferes with the Adhesion of Staphylococcal aureus
Authors: Bingrun Liu, Fuguang Chen, Chongwei Bi, Lin Wang, Xiaobo Zhong, Hongjun Cai, Xuming Deng, Xiaodi Niu, Dacheng Wang
Source: Molecules, Vol 20, Iss 4, Pp 6533-6543 (2015)
Publisher Information: MDPI AG, 2015.
Publication Year: 2015
Collection: LCC:Organic chemistry
Subject Terms: sortase A, quercitrin, Staphylococcus aureus, molecular modeling, Organic chemistry, QD241-441
More Details: Sortase A (SrtA) is a cysteine transpeptidase of most Gram-positive bacteria that is responsible for the anchorage of many surface protein virulence factors to the cell wall layer. SrtA mutants are unable to display surface proteins and are defective in the establishment of infections without affecting microbial viability. In this study, we report that quercitrin (QEN), a natural compound that does not affect Staphylococcus aureus growth, can inhibit the catalytic activity of SrtA in fibrinogen (Fg) cell-clumping and immobilized fibronectin (Fn) adhesion assays. Molecular dynamics simulations and mutagenesis assays suggest that QEN binds to the binding sites of the SrtA G167A and V193A mutants. These findings indicate that QEN is a potential lead compound for the development of new anti-virulence agents against S. aureus infections.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1420-3049
Relation: http://www.mdpi.com/1420-3049/20/4/6533; https://doaj.org/toc/1420-3049
DOI: 10.3390/molecules20046533
Access URL: https://doaj.org/article/ce3cc745c4594e40a8b84050a754fa8c
Accession Number: edsdoj.3cc745c4594e40a8b84050a754fa8c
Database: Directory of Open Access Journals
More Details
ISSN:14203049
DOI:10.3390/molecules20046533
Published in:Molecules
Language:English