Article (Scientific journals)
Structure-Function Relationships of Class D Carbapenemases
Docquier, Jean-Denis; Mangani, S.
2016In Current Drug Targets, 17 (9), p. 1061-1071
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Keywords :
Acinetobacter baumannii; Antibiotic resistance; Beta-lactamases; Carbapenems; Klebsiella pneumoniae; Article; Burkholderia multivorans; Enterobacter cloacae; Francisella philomiragia; Francisella tularensis; Pseudomonas fluorescens; Serratia marcescens; X ray crystallography; Bacterial Proteins; Catalytic Domain; Crystallography, X-Ray; Humans; Models, Molecular; Mutation; Phylogeny; Protein Conformation
Abstract :
[en] Class D carbapenemases, also known as Carbapenem-Hydrolyzing class D β-Lactamases (CHDLs) are of increasingly high clinical relevance, as they have been found in various important human pathogens, such as Acinetobacter baumannii and Klebsiella pneumoniae and contribute to the evolution of these pathogens towards extensively or totally-drug resistance (XDR/TDR) phenotypes. Essentially two main groups of phylogenetically-related enzymes have been described: one including the acquired OXA-23, OXA-24/40, OXA-51 and OXA-58 enzymes mostly in Acinetobacter baumannii, and the other including the OXA-48-related variants, i.e. OXA-54, OXA-162, OXA-163 and OXA- 181. In this article, the biochemical and structural features of class D carbapenemases will be discussed. Furthermore, the mechanistic hypothesis based on recently obtained crystal structures of the native forms of class D carbapenemases and mutants thereof, in complex with relevant substrates or inhibitors, will be critically reviewed. Finally, the mechanism of inhibition by available inhibitors, some of which are currently in clinical development, will be discussed. © 2016 Bentham Science Publishers.
Disciplines :
Life sciences: Multidisciplinary, general & others
Biochemistry, biophysics & molecular biology
Microbiology
Author, co-author :
Docquier, Jean-Denis ;  Université de Liège - ULiège > Département des sciences de la vie > Centre d'ingénierie des protéines
Mangani, S.;  Dipartimento di Biotecnologie, Chimica e Farmacia, University of Siena, Siena, Italy
Language :
English
Title :
Structure-Function Relationships of Class D Carbapenemases
Publication date :
2016
Journal title :
Current Drug Targets
ISSN :
1389-4501
eISSN :
1873-5592
Publisher :
Bentham Science Publishers B.V.
Volume :
17
Issue :
9
Pages :
1061-1071
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 November 2020

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