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Your search keyword '"Cephalosporinase metabolism"' showing total 147 results

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147 results on '"Cephalosporinase metabolism"'

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

2. Role of Enzymatic Activity in the Biological Cost Associated with the Production of AmpC β-Lactamases in Pseudomonas aeruginosa.

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3. Exploring the genetic determinants underlying the differential production of an inducible chromosomal cephalosporinase - BlaB in Yersinia enterocolitica biotypes 1A, 1B, 2 and 4.

4. Low occurrence of extended-spectrum cephalosporinase producing Enterobacteriaceae and no detection of methicillin-resistant coagulase-positive staphylococci in healthy dogs in Sweden.

5. Assessing the occurrence and transfer dynamics of ESBL/pAmpC-producing Escherichia coli across the broiler production pyramid.

6. False-Positive Carbapenem-Hydrolyzing Confirmatory Tests Due to ACT-28, a Chromosomally Encoded AmpC with Weak Carbapenemase Activity from Enterobacter kobei.

7. Characterization of the AmpC β-Lactamase from Burkholderia multivorans.

8. Novel Insights into Selection for Antibiotic Resistance in Complex Microbial Communities.

9. Inactivation of the Pseudomonas-Derived Cephalosporinase-3 (PDC-3) by Relebactam.

10. Shaping Substrate Selectivity in a Broad-Spectrum Metallo-β-Lactamase.

11. OXA-244-Producing Escherichia coli Isolates, a Challenge for Clinical Microbiology Laboratories.

12. Occurrence of bla DHA-1 mediated cephalosporin resistance in Escherichia coli and their transcriptional response against cephalosporin stress: a report from India.

13. Molecular characterization of extended-spectrum β-lactamase, plasmid-mediated AmpC cephalosporinase and carbapenemase genes among Enterobacteriaceae isolates in five medical centres of East and West Azerbaijan, Iran.

14. Ceftazidime/avibactam: a novel cephalosporin/nonbeta-lactam beta-lactamase inhibitor for the treatment of complicated urinary tract infections and complicated intra-abdominal infections.

15. Mutational and acquired carbapenem resistance mechanisms in multidrug resistant Pseudomonas aeruginosa clinical isolates from Recife, Brazil.

16. Gastrointestinal colonization with a cephalosporinase-producing bacteroides species preserves colonization resistance against vancomycin-resistant enterococcus and Clostridium difficile in cephalosporin-treated mice.

17. Identification of CMY-2-type cephalosporinases in clinical isolates of Enterobacteriaceae by MALDI-TOF MS.

18. Resistance markers and genetic diversity in Acinetobacter baumannii strains recovered from nosocomial bloodstream infections.

19. Structural origins of oxacillinase specificity in class D β-lactamases.

20. Identification of 50 class D β-lactamases and 65 Acinetobacter-derived cephalosporinases in Acinetobacter spp.

21. Interactions of oximino-substituted boronic acids and β-lactams with the CMY-2-derived extended-spectrum cephalosporinases CMY-30 and CMY-42.

22. Escherichia coli and Klebsiella pneumoniae producing CTX-M cephalosporinase from swine finishing barns and their association with antimicrobial use.

23. Detection of Salmonella enterica isolates producing CTX-M Cephalosporinase in U.S. livestock populations.

24. Clinical and microbiologic characteristics of cephalosporin-resistant Escherichia coli at three centers in the United States.

25. Dual-lifetime referencing (DLR): a powerful method for on-line measurement of internal pH in carrier-bound immobilized biocatalysts.

26. Extended-spectrum AmpC cephalosporinase in Acinetobacter baumannii: ADC-56 confers resistance to cefepime.

27. Exploring sequence requirements for C₃/C₄ carboxylate recognition in the Pseudomonas aeruginosa cephalosporinase: Insights into plasticity of the AmpC β-lactamase.

28. An unexpected similarity between antibiotic-resistant NDM-1 and beta-lactamase II from Erythrobacter litoralis.

29. Extended-spectrum cephalosporinase in Acinetobacter baumannii.

30. Substrate selectivity and a novel role in inhibitor discrimination by residue 237 in the KPC-2 beta-lactamase.

31. BEL-2, an extended-spectrum beta-lactamase with increased activity toward expanded-spectrum cephalosporins in Pseudomonas aeruginosa.

32. Extended-spectrum cephalosporinases in Pseudomonas aeruginosa.

33. Prevalence of plasmid-mediated AmpC beta-lactamases in a Chinese university hospital from 2003 to 2005: first report of CMY-2-Type AmpC beta-lactamase resistance in China.

34. Saturation mutagenesis of Asn152 reveals a substrate selectivity switch in P99 cephalosporinase.

35. Extended-spectrum cephalosporinases: structure, detection and epidemiology.

36. Characteristics of beta-lactamases and their genes (blaA and blaB) in Yersinia intermedia and Y. frederiksenii.

37. Naturally occurring extended-spectrum cephalosporinases in Escherichia coli.

38. Stepwise upregulation of the Pseudomonas aeruginosa chromosomal cephalosporinase conferring high-level beta-lactam resistance involves three AmpD homologues.

39. [Expression of high-level cephalosporinase due to mutation in the AmpC attenuator of a clinical Escherichia coli strain].

40. Identification of a new allelic variant of the Acinetobacter baumannii cephalosporinase, ADC-7 beta-lactamase: defining a unique family of class C enzymes.

41. [A new member of CMY type cephalosporinase prevailing in Escherichia coli].

42. Resistance to cefepime and cefpirome due to a 4-amino-acid deletion in the chromosome-encoded AmpC beta-lactamase of a Serratia marcescens clinical isolate.

43. Selection during cefepime treatment of a new cephalosporinase variant with extended-spectrum resistance to cefepime in an Enterobacter aerogenes clinical isolate.

45. Chemical complementation: a reaction-independent genetic assay for enzyme catalysis.

46. Unexpected advanced generation cephalosporinase activity of the M69F variant of SHV beta-lactamase.

47. Prospective survey of beta-lactamases produced by ceftazidime- resistant Pseudomonas aeruginosa isolated in a French hospital in 2000.

48. The ddcA gene from Streptomyces fradiae encodes an extracellular beta-lactamase with penicillinase and cephalosporinase activities.

49. Heterogeneity of AmpC cephalosporinases of Hafnia alvei clinical isolates expressing inducible or constitutive ceftazidime resistance phenotypes.

50. The high resolution crystal structure for class A beta-lactamase PER-1 reveals the bases for its increase in breadth of activity.