دورية أكاديمية

Natural protein engineering in the Ω-loop: the role of Y221 in ceftazidime and ceftolozane resistance in Pseudomonas -derived cephalosporinase.

التفاصيل البيبلوغرافية
العنوان: Natural protein engineering in the Ω-loop: the role of Y221 in ceftazidime and ceftolozane resistance in Pseudomonas -derived cephalosporinase.
المؤلفون: Mack AR; Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA., Kumar V; Department of Biochemistry, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA., Taracila MA; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA.; Department of Medicine, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA., Mojica MF; Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA.; CWRU-Cleveland VAMC Center for Antimicrobial Resistance and Epidemiology (Case VA CARES) , Cleveland, Ohio, USA., O'Shea M; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA., Schinabeck W; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA., Silver G; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA., Hujer AM; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA.; Department of Medicine, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA., Papp-Wallace KM; Research Service, VA Northeast Ohio Healthcare System , Cleveland, Ohio, USA.; Department of Biochemistry, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Department of Medicine, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA., Chen S; Department of Pharmaceutical and Biological Chemistry, School of Pharmacy, University College London , London, England, United Kingdom., Haider S; Department of Pharmaceutical and Biological Chemistry, School of Pharmacy, University College London , London, England, United Kingdom.; UCL Centre for Advanced Research Computing, University College London , London, England, United Kingdom., Caselli E; Department of Life Sciences, University of Modena and Reggio Emilia , Modena, Italy., Prati F; Department of Life Sciences, University of Modena and Reggio Emilia , Modena, Italy., van den Akker F; Department of Biochemistry, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA., Bonomo RA; Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Department of Biochemistry, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Department of Medicine, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; CWRU-Cleveland VAMC Center for Antimicrobial Resistance and Epidemiology (Case VA CARES) , Cleveland, Ohio, USA.; Department of Pharmacology, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Department of Proteomics and Bioinformatics, Case Western Reserve University School of Medicine , Cleveland, Ohio, USA.; Clinician Scientist Investigator, Louis Stokes Cleveland Department of Veterans Affairs Medical Center , Cleveland, Ohio, USA.
المصدر: Antimicrobial agents and chemotherapy [Antimicrob Agents Chemother] 2023 Nov 15; Vol. 67 (11), pp. e0079123. Date of Electronic Publication: 2023 Oct 18.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: American Society for Microbiology Country of Publication: United States NLM ID: 0315061 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-6596 (Electronic) Linking ISSN: 00664804 NLM ISO Abbreviation: Antimicrob Agents Chemother Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Washington, American Society for Microbiology
مواضيع طبية MeSH: Ceftazidime*/pharmacology , Cephalosporinase*/metabolism, Pseudomonas/genetics ; Molecular Docking Simulation ; beta-Lactamases/metabolism ; Protein Engineering ; Microbial Sensitivity Tests ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/metabolism ; Azabicyclo Compounds/pharmacology ; Pseudomonas aeruginosa/metabolism ; Drug Combinations
مستخلص: A wide variety of clinically observed single amino acid substitutions in the Ω-loop region have been associated with increased minimum inhibitory concentrations and resistance to ceftazidime (CAZ) and ceftolozane (TOL) in Pseudomonas -derived cephalosporinase and other class C β-lactamases. Herein, we demonstrate the naturally occurring tyrosine to histidine substitution of amino acid 221 (Y221H) in Pseudomonas -derived cephalosporinase (PDC) enables CAZ and TOL hydrolysis, leading to similar kinetic profiles ( k cat = 2.3 ± 0.2 µM and 2.6 ± 0.1 µM, respectively). Mass spectrometry of PDC-3 establishes the formation of stable adducts consistent with the formation of an acyl enzyme complex, while spectra of E219K (a well-characterized, CAZ- and TOL-resistant comparator) and Y221H are consistent with more rapid turnover. Thermal denaturation experiments reveal decreased stability of the variants. Importantly, PDC-3, E219K, and Y221H are all inhibited by avibactam and the boronic acid transition state inhibitors (BATSIs) LP06 and S02030 with nanomolar IC 50 values and the BATSIs stabilize all three enzymes. Crystal structures of PDC-3 and Y221H as apo enzymes and complexed with LP06 and S02030 (1.35-2.10 Å resolution) demonstrate ligand-induced conformational changes, including a significant shift in the position of the sidechain of residue 221 in Y221H (as predicted by enhanced sampling well-tempered metadynamics simulations) and extensive hydrogen bonding between the enzymes and BATSIs. The shift of residue 221 leads to the expansion of the active site pocket, and molecular docking suggests substrates orientate differently and make different intermolecular interactions in the enlarged active site compared to the wild-type enzyme.
Competing Interests: The authors declare no conflict of interest.
معلومات مُعتمدة: R01 AI063517 United States AI NIAID NIH HHS
فهرسة مساهمة: Keywords: Pseudomonas aeruginosa; Pseudomonas-derived cephalosporinase (PDC); Y221H; antibiotic resistance; beta-lactamases; beta-lactmase inhibitor; boronic acid transition state inhibitor (BATSI); ceftazidime resistance; ceftolozane resistance; enzyme kinetics
المشرفين على المادة: 9M416Z9QNR (Ceftazidime)
37A4IES95Q (ceftolozane)
EC 3.5.2.- (Cephalosporinase)
0 (S02030)
EC 3.5.2.6 (beta-Lactamases)
0 (Anti-Bacterial Agents)
0 (Azabicyclo Compounds)
0 (Drug Combinations)
تواريخ الأحداث: Date Created: 20231018 Date Completed: 20231216 Latest Revision: 20240210
رمز التحديث: 20240210
مُعرف محوري في PubMed: PMC10648885
DOI: 10.1128/aac.00791-23
PMID: 37850746
قاعدة البيانات: MEDLINE
الوصف
تدمد:1098-6596
DOI:10.1128/aac.00791-23