Identification of Mutations in the mrdA Gene Encoding PBP2 That Reduce Carbapenem and Diazabicyclooctane Susceptibility of Escherichia coli Clinical Isolates with Mutations in ftsI (PBP3) and Which Carry blaNDM-1

Autor: Srijan Ranjitkar, Folkert Reck, Xiaobo Ke, Qingming Zhu, Glenn McEnroe, Sara L. Lopez, Charles R. Dean

Publikováno v: mSphere, Vol 4, Iss 4 (2019)

ABSTRACT Penicillin-binding proteins (PBPs) are essential for bacterial cell wall biosynthesis, and several are clinically validated antibacterial targets of β-lactam antibiotics. We identified mutations in the mrdA gene encoding the PBP2 protein in

Externí odkaz: https://doaj.org/article/3c130500a04c493ebeeaca6cf0d68b31

A pathway-directed positive growth restoration assay to facilitate the discovery of lipid A and fatty acid biosynthesis inhibitors in Acinetobacter baumannii.

Autor: Daryl L Richie, Lisha Wang, Helen Chan, Gianfranco De Pascale, David A Six, Jun-Rong Wei, Charles R Dean

Publikováno v: PLoS ONE, Vol 13, Iss 3, p e0193851 (2018)

Acinetobacter baumannii ATCC 19606 can grow without lipooligosaccharide (LOS). Lack of LOS can result from disruption of the early lipid A biosynthetic pathway genes lpxA, lpxC or lpxD. Although LOS itself is not essential for growth of A. baumannii

Externí odkaz: https://doaj.org/article/10190c5aac8a410eb37f60e20cfe2614

LpxK Is Essential for Growth of Acinetobacter baumannii ATCC 19606: Relationship to Toxic Accumulation of Lipid A Pathway Intermediates

Autor: Jun-Rong Wei, Daryl L. Richie, Mina Mostafavi, Louis E. Metzger, Christopher M. Rath, William S. Sawyer, Kenneth T. Takeoka, Charles R. Dean

Publikováno v: mSphere, Vol 2, Iss 4 (2017)

ABSTRACT Acinetobacter baumannii ATCC 19606 can grow without lipid A, the major component of lipooligosaccharide. However, we previously reported that depletion of LpxH (the fourth enzyme in the lipid A biosynthetic pathway) prevented growth of this

Externí odkaz: https://doaj.org/article/e288e2e6824e4e1d854b8e90cdc75dee

Author Correction: Acylated-acyl carrier protein stabilizes the Pseudomonas aeruginosa WaaP lipopolysaccharide heptose kinase

Autor: Naomi N. K. Kreamer, Rajiv Chopra, Ruth E. Caughlan, Doriano Fabbro, Eric Fang, Patricia Gee, Ian Hunt, Min Li, Barbara C. Leon, Lionel Muller, Brian Vash, Angela L. Woods, Travis Stams, Charles R. Dean, Tsuyoshi Uehara

Publikováno v: Scientific Reports, Vol 8, Iss 1, Pp 1-1 (2018)

A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.

Externí odkaz: https://doaj.org/article/a4e35beabe6845109a733f8dfc8a0e04

Discovery and Optimization of DNA Gyrase and Topoisomerase IV Inhibitors with Potent Activity against Fluoroquinolone-Resistant Gram-Positive Bacteria

Autor: David McKenney, Louis E. Metzger, Dirksen E. Bussiere, Sylvia Ma, Ashish Patel, Bhavesh Dhumale, Upendra Kulkarni, Jay Parthiban Lakshman, Sean King, Duncan Armstrong, Kyuto Tashiro, Lauren Kossy, Tushar Patel, Lauren M. Holder, Jogitha Selvarajah, Sarah Williams, Satya Yendluri, Colin Osborne, Jason Vo, Mangesh Fulsunder, Xiaolan Ling, Laura Wedel, Gianfranco De Pascale, Jennifer A. Leeds, Cody Cepura, Heinz E. Moser, Alexey Rivkin, Sunil Namballa, Colin K. Skepper, Bhavin Kantariya, Mina Mostafavi, Bhautik Savani, Anatoli Lvov, Guillaume Lapointe, Cornelia Bellamacina, Bhavesh Vora, Daryl L. Richie, Helen Chan, Wosenu Mergo, Jianwei Bian, Wei Shu, Keshav Mhaske, Aregahegn Yifru, Mark R. Sanderson, Swapnil Malekar, Johanne Blais, Qin Yue, Yong Zhang, Katherine V. Thompson, Julie Kim, Charles R. Dean, Vijay Sethuraman, Trixie Wagner, L. Mark Fisher, Dennis A. Veselkov, Darshit Patel, Folkert Reck, Jonas Noeske, Krishniah Vaarla, Lakhan Vala, Shailesh Satasia, Krunal Prajapati, Philippe Piechon, Valery Polyakov, Katherine R Prosen

Publikováno v: Lapointe, G, Skepper, C K, Holder, L M, Armstrong, D, Bellamacina, C, Blais, J, Bussiere, D, Bian, J, Cepura, C, Chan, H, Dean, C R, De Pascale, G, Dhumale, B, Fisher, L M, Fulsunder, M, Kantariya, B, Kim, J, King, S, Kossy, L, Kulkarni, U, Lakshman, J, Leeds, J A, Ling, X, Lvov, A, Ma, S, Malekar, S, McKenney, D, Mergo, W, Metzger, L, Mhaske, K, Moser, H E, Mostafavi, M, Namballa, S, Noeske, J, Osborne, C, Patel, A, Patel, D, Patel, T, Piechon, P, Polyakov, V, Prajapati, K, Prosen, K R, Reck, F, Richie, D L, Sanderson, M R, Satasia, S, Savani, B, Selvarajah, J, Sethuraman, V, Shu, W, Tashiro, K, Thompson, K V, Vaarla, K, Vala, L, Veselkov, D A, Vo, J, Vora, B, Wagner, T, Wedel, L, Williams, S L, Yendluri, S, Yue, Q, Yifru, A, Zhang, Y & Rivkin, A 2021, ' Discovery and Optimization of DNA Gyrase and Topoisomerase IV Inhibitors with Potent Activity against Fluoroquinolone-Resistant Gram-Positive Bacteria ', Journal of Medicinal Chemistry, vol. 64, no. 9, pp. 6329-6357 . https://doi.org/10.1021/acs.jmedchem.1c00375

Herein, we describe the discovery and optimization of a novel series that inhibits bacterial DNA gyrase and topoisomerase IV via binding to, and stabilization of, DNA cleavage complexes. Optimization of this series led to the identification of compou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56db96726415696056387173baa99222
https://kclpure.kcl.ac.uk/en/publications/675d57ab-71d9-4244-886c-019cc57306cd