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Hart KM, Reck M, Bowman GR, Wencewicz TA. Tabtoxinine-β-lactam is a “stealth” β-lactam antibiotic that evades β-lactamase-mediated antibiotic resistance. MEDCHEMCOMM 2016. [DOI: 10.1039/c5md00325c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Tabtoxinine-β-lactam (TβL) is a phytotoxin produced by plant pathogenic strains of Pseudomonas syringae.
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Affiliation(s)
- Kathryn M. Hart
- Department of Biochemistry and Molecular Biophysics
- Washington University School of Medicine
- St. Louis
- USA
| | - Margaret Reck
- Department of Chemistry
- Washington University in St. Louis
- St. Louis
- USA
| | - Gregory R. Bowman
- Department of Biochemistry and Molecular Biophysics
- Washington University School of Medicine
- St. Louis
- USA
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2
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Biochemical and structural characterization of the subclass B1 metallo-β-lactamase VIM-4. Antimicrob Agents Chemother 2010; 55:1248-55. [PMID: 21149620 DOI: 10.1128/aac.01486-09] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The metallo-β-lactamase VIM-4, mainly found in Pseudomonas aeruginosa or Acinetobacter baumannii, was produced in Escherichia coli and characterized by biochemical and X-ray techniques. A detailed kinetic study performed in the presence of Zn²+ at concentrations ranging from 0.4 to 100 μM showed that VIM-4 exhibits a kinetic profile similar to the profiles of VIM-2 and VIM-1. However, VIM-4 is more active than VIM-1 against benzylpenicillin, cephalothin, nitrocefin, and imipenem and is less active than VIM-2 against ampicillin and meropenem. The crystal structure of the dizinc form of VIM-4 was solved at 1.9 Å. The sole difference between VIM-4 and VIM-1 is found at residue 228, which is Ser in VIM-1 and Arg in VIM-4. This substitution has a major impact on the VIM-4 catalytic efficiency compared to that of VIM-1. In contrast, the differences between VIM-2 and VIM-4 seem to be due to a different position of the flapping loop and two substitutions in loop 2. Study of the thermal stability and the activity of the holo- and apo-VIM-4 enzymes revealed that Zn²+ ions have a pronounced stabilizing effect on the enzyme and are necessary for preserving the structure.
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3
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Bebrone C, Anne C, De Vriendt K, Devreese B, Rossolini GM, Van Beeumen J, Frère JM, Galleni M. Dramatic broadening of the substrate profile of the Aeromonas hydrophila CphA metallo-beta-lactamase by site-directed mutagenesis. J Biol Chem 2005; 280:28195-202. [PMID: 15863831 DOI: 10.1074/jbc.m414052200] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Among class B beta-lactamases, the subclass B2 CphA enzyme is characterized by a unique specificity profile. CphA efficiently hydrolyzes only carbapenems. In this work, we generated site-directed mutants that possess a strongly broadened activity spectrum when compared with the WT CphA. Strikingly, the N116H/N220G double mutant exhibits a substrate profile close to that observed for the broad spectrum subclass B1 enzymes. The double mutant is significantly activated by the binding of a second zinc ion under conditions where the WT enzyme is non-competitively inhibited by the same ion.
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Affiliation(s)
- Carine Bebrone
- Centre d'Ingénierie des Protéines, Université de Liège, Allée de 6 Août B6, Sart-Tilmanm, 4000 Liège, Belgium
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Vilar M, Galleni M, Solmajer T, Turk B, Frère JM, Matagne A. Kinetic study of two novel enantiomeric tricyclic beta-lactams which efficiently inactivate class C beta-lactamases. Antimicrob Agents Chemother 2001; 45:2215-23. [PMID: 11451677 PMCID: PMC90634 DOI: 10.1128/aac.45.8.2215-2223.2001] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A detailed kinetic study of the interaction between two ethylidene derivatives of tricyclic carbapenems, Lek 156 and Lek 157, and representative beta-lactamases and D-alanyl-D-alanine peptidases (DD-peptidases) is presented. Both compounds are very efficient inactivators of the Enterobacter cloacae 908R beta-lactamase, which is usually resistant to inhibition. Preliminary experiments indicate that various extended-spectrum class C beta-lactamases (ACT-1, CMY-1, and MIR-1) are also inactivated. With the E. cloacae 908R enzyme, complete inactivation occurs with a second-order rate constant, k(2)/K', of 2 x 10(4) to 4 x 10(4) M(-1) s(-1), and reactivation is very slow, with a half-life of >1 h. Accordingly, Lek 157 significantly decreases the MIC of ampicillin for E. cloacae P99, a constitutive class C beta-lactamase overproducer. With the other serine beta-lactamases tested, the covalent adducts exhibit a wide range of stabilities, with half-lives ranging from long (>4 h with the TEM-1 class A enzyme), to medium (10 to 20 min with the OXA-10 class D enzyme), to short (0.2 to 0.4 s with the NmcA class A beta-lactamase). By contrast, both carbapenems behave as good substrates of the Bacillus cereus metallo-beta-lactamase (class B). The Streptomyces sp. strain R61 and K15 extracellular DD-peptidases exhibit low levels of sensitivity to both compounds.
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Affiliation(s)
- M Vilar
- Laboratoire d'Enzymologie, Centre for Protein Engineering, University of Liège, Institut de Chimie, Belgium
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Matagne A, Lamotte-Brasseur J, Frère JM. Catalytic properties of class A beta-lactamases: efficiency and diversity. Biochem J 1998; 330 ( Pt 2):581-98. [PMID: 9480862 PMCID: PMC1219177 DOI: 10.1042/bj3300581] [Citation(s) in RCA: 276] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
beta-Lactamases are the main cause of bacterial resistance to penicillins, cephalosporins and related beta-lactam compounds. These enzymes inactivate the antibiotics by hydrolysing the amide bond of the beta-lactam ring. Class A beta-lactamases are the most widespread enzymes and are responsible for numerous failures in the treatment of infectious diseases. The introduction of new beta-lactam compounds, which are meant to be 'beta-lactamase-stable' or beta-lactamase inhibitors, is thus continuously challenged either by point mutations in the ubiquitous TEM and SHV plasmid-borne beta-lactamase genes or by the acquisition of new genes coding for beta-lactamases with different catalytic properties. On the basis of the X-ray crystallography structures of several class A beta-lactamases, including that of the clinically relevant TEM-1 enzyme, it has become possible to analyse how particular structural changes in the enzyme structures might modify their catalytic properties. However, despite the many available kinetic, structural and mutagenesis data, the factors explaining the diversity of the specificity profiles of class A beta-lactamases and their amazing catalytic efficiency have not been thoroughly elucidated. The detailed understanding of these phenomena constitutes the cornerstone for the design of future generations of antibiotics.
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Affiliation(s)
- A Matagne
- Centre for Protein Engineering and Laboratoire d'Enzymologie, Université de Liège, Institut de Chimie B6, 4000 Liège (Sart Tilman), Belgium
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6
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Bush K, Mobashery S. How β-Lactamases Have Driven Pharmaceutical Drug Discovery. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1998. [DOI: 10.1007/978-1-4615-4897-3_5] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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7
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Wladkowski BD, Chenoweth SA, Sanders JN, Krauss M, Stevens WJ. Acylation of β-Lactams by Class A β-Lactamase: An ab Initio Theoretical Study on the Effects of the Oxy-Anion Hole. J Am Chem Soc 1997. [DOI: 10.1021/ja963678g] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brian D. Wladkowski
- Contribution from the Department of Chemistry, Western Maryland College, Two College Hill, Westminster, Maryland 21157, and Center for Advanced Research in Biotechnology, National Institute of Standards and Technology, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - Sarah A. Chenoweth
- Contribution from the Department of Chemistry, Western Maryland College, Two College Hill, Westminster, Maryland 21157, and Center for Advanced Research in Biotechnology, National Institute of Standards and Technology, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - Julie N. Sanders
- Contribution from the Department of Chemistry, Western Maryland College, Two College Hill, Westminster, Maryland 21157, and Center for Advanced Research in Biotechnology, National Institute of Standards and Technology, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - Morris Krauss
- Contribution from the Department of Chemistry, Western Maryland College, Two College Hill, Westminster, Maryland 21157, and Center for Advanced Research in Biotechnology, National Institute of Standards and Technology, 9600 Gudelsky Drive, Rockville, Maryland 20850
| | - Walter J. Stevens
- Contribution from the Department of Chemistry, Western Maryland College, Two College Hill, Westminster, Maryland 21157, and Center for Advanced Research in Biotechnology, National Institute of Standards and Technology, 9600 Gudelsky Drive, Rockville, Maryland 20850
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Raquet X, Lamotte-Brasseur J, Bouillenne F, Frère JM. A disulfide bridge near the active site of carbapenem-hydrolyzing class A beta-lactamases might explain their unusual substrate profile. Proteins 1997; 27:47-58. [PMID: 9037711 DOI: 10.1002/(sici)1097-0134(199701)27:1<47::aid-prot6>3.0.co;2-k] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Bacterial resistance to beta-lactam antibiotics, a clinically worrying and recurrent problem, is often due to the production of beta-lactamases, enzymes that efficiently hydrolyze the amide bond of the beta-lactam nucleus. Imipenem and other carbapenems escape the activity of most active site serine beta-lactamases and have therefore become very popular drugs for antibacterial chemotherapy in the hospital environment. Their usefulness is, however, threatened by the appearance of new beta-lactamases that efficiently hydrolyze them. This study is focused on the structure and properties of two recently described class A carbapenemases, produced by Serratia marcescens and Enterobacter cloacae strains and leads to a better understanding of the specificity of beta-lactamases. In turn, this will contribute to the design of better antibacterial drugs. Three-dimensional models of the two class A carbapenemases were constructed by homology modeling. They suggested the presence, near the active site of the enzymes, of a disulfide bridge (C69-C238) whose existence was experimentally confirmed. Kinetic parameters were measured with the purified Sme-1 carbapenemase, and an attempt was made to explain its specific substrate profile by analyzing the structures of minimized Henri-Michaelis complexes and comparing them to those obtained for the "classical" TEM-1 beta-lactamase. The peculiar substrate profile of the carbapenemases appears to be strongly correlated with the presence of the disulfide bridge between C69 and C238.
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Affiliation(s)
- X Raquet
- Centre d'Ingénierie des Protéines, Université de Liège (Sart-Tilman), Belgium
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9
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Taibi-Tronche P, Massova I, Vakulenko SB, Lerner SA, Mobashery S. Evidence for Structural Elasticity of Class A β-Lactamases in the Course of Catalytic Turnover of the Novel Cephalosporin Cefepime. J Am Chem Soc 1996. [DOI: 10.1021/ja9529753] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pascale Taibi-Tronche
- Contribution from the Departments of Chemistry, Medicine, and Biochemistry, Wayne State University, Detroit, Michigan 48202
| | - Irina Massova
- Contribution from the Departments of Chemistry, Medicine, and Biochemistry, Wayne State University, Detroit, Michigan 48202
| | - Sergei B. Vakulenko
- Contribution from the Departments of Chemistry, Medicine, and Biochemistry, Wayne State University, Detroit, Michigan 48202
| | - Stephen A. Lerner
- Contribution from the Departments of Chemistry, Medicine, and Biochemistry, Wayne State University, Detroit, Michigan 48202
| | - Shahriar Mobashery
- Contribution from the Departments of Chemistry, Medicine, and Biochemistry, Wayne State University, Detroit, Michigan 48202
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Frau J, Price SL. Possible binding orientations ofβ-lactams withinStaphylococcus aureus POβ-lactamase suggest factors involved inβ-lactamase resistance. Theor Chem Acc 1996. [DOI: 10.1007/bf02335462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Miyashita K, Massova I, Mobashery S. Quantification of the extent of attenuation of the rate of turnover chemistry of the TEM-1 β-lactamase by the α-1R-hydroxyethyl group in substrates. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00022-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Felici A, Perilli M, Segatore B, Franceschini N, Setacci D, Oratore A, Stefani S, Galleni M, Amicosante G. Interactions of biapenem with active-site serine and metallo-beta-lactamases. Antimicrob Agents Chemother 1995; 39:1300-5. [PMID: 7574520 PMCID: PMC162731 DOI: 10.1128/aac.39.6.1300] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Biapenem, formerly LJC 10,627 or L-627, a carbapenem antibiotic, was studied in its interactions with 12 beta-lactamases belonging to the four molecular classes proposed by R. P. Ambler (Philos. Trans. R. Soc. Lond. Biol. Sci. 289:321-331, 1980). Kinetic parameters were determined. Biapenem was readily inactivated by metallo-beta-lactamases but behaved as a transient inhibitor of the active-site serine enzymes tested, although with different acylation efficiency values. Class A and class D beta-lactamases were unable to confer in vitro resistance toward this carbapenem antibiotic. Surprisingly, the same situation was found in the case of class B enzymes from Aeromonas hydrophila AE036 and Bacillus cereus 5/B/6 when expressed in Escherichia coli strains.
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Affiliation(s)
- A Felici
- Dipartimento di Scienze e Tecnologie Biomediche e di Biometria, Università degli Studi dell'Aquila, Italy
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Bush K, Jacoby GA, Medeiros AA. A functional classification scheme for beta-lactamases and its correlation with molecular structure. Antimicrob Agents Chemother 1995; 39:1211-33. [PMID: 7574506 PMCID: PMC162717 DOI: 10.1128/aac.39.6.1211] [Citation(s) in RCA: 1553] [Impact Index Per Article: 53.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- K Bush
- American Cyanamid Company, Lederle Laboratories, Pearl River, New York 10965, USA
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Matagne A, Frère JM. Contribution of mutant analysis to the understanding of enzyme catalysis: the case of class A beta-lactamases. BIOCHIMICA ET BIOPHYSICA ACTA 1995; 1246:109-27. [PMID: 7819278 DOI: 10.1016/0167-4838(94)00177-i] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Class A beta-lactamases represent a family of well studied enzymes. They are responsible for many antibiotic resistance phenomena and thus for numerous failures in clinical chemotherapy. Despite the facts that five structures are known at high resolution and that detailed analyses of enzymes modified by site-directed mutagenesis have been performed, their exact catalytic mechanism remains controversial. This review attempts to summarize and to discuss the many available data.
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Affiliation(s)
- A Matagne
- Laboratoire d'Enzymologie et Centre d'Ingénierie des Protéines, Université de Liège, Belgium
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