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  1. Impact of the double deletion ΔG242-T243 in KPC-2 in the effectiveness of ceftazidime-avibactam and imipenem-relebactam

    Article • Antimicrobial Agents and Chemotherapy, June 2025, ASM Journals

    Dr Pablo Power, Professor Gabriel O. Gutkind

  2. Crystal structure of the class A extended-spectrum β-lactamase CTX-M-96 in complex with relebactam at 1.03 Angstrom resolution

    Article • Antimicrobial Agents and Chemotherapy, August 2024, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  3. Genetic and Phenotypic Changes Related to the Development of mec-Independent Oxacillin Non-Susceptibility in ST8 Staphylococcus aureus Recovered after Antibiotic Therapy in a Patient with Bacteremia

    Article • Antibiotics, June 2024, MDPI AG

    Dr Pablo Power

  4. Insights into the activity of cefiderocol against PER-2 producing Enterobacterales

    Article • Antimicrobial Agents and Chemotherapy, May 2024, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  5. Emergence of KPC-113 and KPC-114 variants in ceftazidime-avibactam-resistant Klebsiella pneumoniae belonging to high-risk clones ST11 and ST16 in South America

    Article • Microbiology Spectrum, October 2023, ASM Journals

    Dr Pablo Power

  6. Diversity of genetic platforms harboring the blaPER-2 gene in Enterobacterales and insights into the role of ISPa12 in its mobilization and dissemination

    Article • International Journal of Antimicrobial Agents, July 2023, Elsevier

    Professor Gabriel O. Gutkind, Dr Pablo Power

  7. Biochemical and Structural Characterization of CRH-1, a Carbapenemase from Chromobacterium haemolyticum Related to KPC β-Lactamases

    Article • Antimicrobial Agents and Chemotherapy, June 2023, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power, Professor Luca Guardabassi

  8. Boronic Acid Transition State Inhibitors as Potent Inactivators of KPC and CTX-M β-Lactamases: Biochemical and Structural Analyses

    Article • Antimicrobial Agents and Chemotherapy, January 2023, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  9. Author Correction: Genomic analysis of sewage from 101 countries reveals global landscape of antimicrobial resistance

    Article • Nature Communications, January 2023, Springer Science + Business Media

    Dr Pablo Power

  10. Genomic analysis of sewage from 101 countries reveals global landscape of antimicrobial resistance

    Article • Nature Communications, December 2022, Springer Science + Business Media

    Dr Pablo Power

  11. Editorial: Structural and Biochemical Aspects of the Interaction of β-Lactamases With State-of-the-Art Inhibitors

    Article • Frontiers in Microbiology, February 2022, Frontiers

    Dr Pablo Power

  12. Characterization of Emerging Pathogens Carrying blaKPC-2 Gene in IncP-6 Plasmids Isolated From Urban Sewage in Argentina

    Article • Frontiers in Cellular and Infection Microbiology, August 2021, Frontiers

    Dr Pablo Power

  13. Redefining the Origin and Evolution of Chromosomally Encoded bla CTX-M/KLU in the Context of a Revised Taxonomy of Genus Kluyvera

    Article • Antimicrobial Agents and Chemotherapy, June 2021, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  14. Structural and Biochemical Characterization of the Novel CTX-M-151 Extended-Spectrum β-Lactamase and Its Inhibition by Avibactam

    Article • Antimicrobial Agents and Chemotherapy, March 2021, ASM Journals

    Dr Pablo Power

  15. Diversity of β-lactamase-encoding genes in wastewater: bacteriophages as reporters

    Article • Archives of Virology, March 2021, Springer Science + Business Media

    Dr Pablo Power

  16. FONA-7, a Novel Extended-Spectrum β-Lactamase Variant of the FONA Family Identified in Serratia fonticola

    Article • Microbial Drug Resistance, September 2020, Mary Ann Liebert Inc

    Dr Pablo Power

  17. Comparative Kinetic Analysis of OXA-438 with Related OXA-48-Type Carbapenem-Hydrolyzing Class D β-Lactamases

    Article • ACS Infectious Diseases, September 2020, American Chemical Society (ACS)

    Dr Pablo Power

  18. Structural Insights into the Inhibition of the Extended-Spectrum β-Lactamase PER-2 by Avibactam

    Article • Antimicrobial Agents and Chemotherapy, June 2019, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  19. Whole Genome Sequence Analysis of Burkholderia contaminans FFH2055 Strain Reveals the Presence of Putative β-Lactamases

    Article • Current Microbiology, February 2019, Springer Science + Business Media

    Dr Pablo Power

  20. Novel mcr-5.3 variant in a CTX-M-8-producing Escherichia coli ST711 isolated from an infected horse

    Article • Journal of Antimicrobial Chemotherapy, September 2018, Oxford University Press (OUP)

    Professor Gabriel O. Gutkind, Dr Pablo Power

  21. Kluyvera strikes again: the origin for Fosfomycin resistance

    Article • Antimicrobial Agents and Chemotherapy, June 2018, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  22. Defining Substrate Specificity in the CTX-M Family: the Role of Asp240 in Ceftazidime Hydrolysis

    Article • Antimicrobial Agents and Chemotherapy, April 2018, ASM Journals

    Dr Pablo Power, Professor Gabriel O. Gutkind

  23. Complete Sequence of the IncA/C1Plasmid pCf587 CarryingblaPER-2fromCitrobacter freundii

    Article • Antimicrobial Agents and Chemotherapy, February 2018, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  24. Crystal structure and kinetic analysis of the class B3 di-zinc metallo-β-lactamase LRA-12 from an Alaskan soil metagenome

    Article • PLOS One, July 2017, PLOS

    Professor Gabriel O. Gutkind, Dr Pablo Power

  25. Biochemical Characterization of β-Lactamases from Mycobacterium abscessus Complex and Genetic Environment of the β-Lactamase-Encoding Gene

    Article • Microbial Drug Resistance, April 2017, Mary Ann Liebert Inc

    Professor Gabriel O. Gutkind, Jacobus de Waard, Dr Pablo Power

  26. Effective drug to fight back antibiotic resistant bacteria

    Article • Antimicrobial Agents and Chemotherapy, March 2017, ASM Journals

    Dr Pablo Power, Professor Gabriel O. Gutkind

  27. Impact of Mutations at Arg220 and Thr237 in PER-2 β-Lactamase on Conformation, Activity, and Susceptibility to Inhibitors

    Article • Antimicrobial Agents and Chemotherapy, March 2017, ASM Journals

    Dr Pablo Power, Professor Gabriel O. Gutkind

  28. Rapid Identification of OXA-48 and OXA-163 Subfamilies in Carbapenem-Resistant Gram-Negative Bacilli with a Novel Immunochromatographic Lateral Flow Assay

    Article • Journal of Clinical Microbiology, November 2016, ASM Journals

    Dr Pablo Power

  29. Structural and Kinetic Insights into the “Ceftazidimase” Behavior of the Extended-Spectrum β-Lactamase CTX-M-96

    Article • Biochemistry, August 2015, American Chemical Society (ACS)

    Professor Gabriel O. Gutkind, Dr Pablo Power

  30. Molecular and Biochemical Characterization of CTX-M-131, a Natural Asp240Gly Variant Derived from CTX-M-2, Produced by a Providencia rettgeri Clinical Strain in São Paulo, Brazil

    Article • Antimicrobial Agents and Chemotherapy, January 2015, ASM Journals

    Dr Milena Dropa, Professor Gabriel O. Gutkind, Dr Pablo Power

  31. Crystal Structure of the Extended-Spectrum β-Lactamase PER-2 and Insights into the Role of Specific Residues in the Interaction with β-Lactams and β-Lactamase Inhibitors

    Article • Antimicrobial Agents and Chemotherapy, July 2014, ASM Journals

    Dr Pablo Power, Professor Gabriel O. Gutkind

  32. INQ-1, a chromosome-encoded AmpC  -lactamase from Inquilinus limosus

    Article • Journal of Antimicrobial Chemotherapy, September 2013, Oxford University Press (OUP)

    Professor Gabriel O. Gutkind, Dr Pablo Power

  33. Novel Cold-Adapted Esterase MHlip from an Antarctic Soil Metagenome

    Article • Biology, January 2013, MDPI AG

    Dr Pablo Power

  34. β-lactamase-mediated Resistance: A Biochemical, Epidemiological and Genetic Overview

    Article • Current Pharmaceutical Design, November 2012, Bentham Science Publishers

    Dr Pablo Power, Professor Gabriel O. Gutkind

  35. Inhibition of the keratinolytic subtilisin protease Sub3 from Microsporum canis by its propeptide (proSub3) and evaluation of the capacity of proSub3 to inhibit fungal adherence to feline epidermis

    Article • Veterinary Microbiology, October 2012, Elsevier

    Dr Pablo Power

  36. Novel fragments of clavulanate observed in the structure of the class A  -lactamase from Bacillus licheniformis BS3

    Article • Journal of Antimicrobial Chemotherapy, July 2012, Oxford University Press (OUP)

    Professor Gabriel O. Gutkind, Dr Pablo Power

  37. First detection of a transferable bla CTX-M-14b gene in a Klebsiella pneumoniae clinical isolate from Tunisia and analysis of its genetic context

    Article • Annals of Microbiology, March 2012, Springer Science + Business Media

    Dr Pablo Power

  38. Emergence and Dominance of CTX-M-15 Extended Spectrum Beta-Lactamase Among Escherichia coli Isolates from Children

    Article • Microbial Drug Resistance, June 2011, Mary Ann Liebert Inc

    Dr Pablo Power

  39. Novel Chromosome-Encoded CTX-M-78 β-Lactamase from a Kluyvera georgiana Clinical Isolate as a Putative Origin of CTX-M-25 Subgroup

    Article • Antimicrobial Agents and Chemotherapy, April 2010, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  40. First detection of CTX-M-28 in a Tunisian hospital from a cefotaxime-resistant Klebsiella pneumoniae strain

    Article • Pathologie Biologie, July 2009, Elsevier

    Dr Pablo Power

  41. Insights into bacterial cellulose biosynthesis by functional metagenomics on Antarctic soil samples

    Article • The ISME Journal, May 2009, Oxford University Press (OUP)

    Dr Pablo Power

  42. Immunobiological role of llama heavy-chain antibodies against a bacterial β-lactamase

    Article • Veterinary Immunology and Immunopathology, June 2007, Elsevier

    Professor Gabriel O. Gutkind, Dr Pablo Power

  43. Biochemical Characterization of PER-2 and Genetic Environment of blaPER-2

    Article • Antimicrobial Agents and Chemotherapy, April 2007, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  44. Characterisation of KLUA-9, a β-lactamase from extended-spectrum cephalosporin-susceptible Kluyvera ascorbata, and genetic organisation of blaKLUA-9

    Article • International Journal of Antimicrobial Agents, March 2007, Elsevier

    Professor Gabriel O. Gutkind, Dr Pablo Power

  45. Biochemical and Molecular Characterization of Three New Variants of AmpC β-Lactamases from Morganella morganii

    Article • Antimicrobial Agents and Chemotherapy, March 2006, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  46. New TEM-Derived Extended-Spectrum β-Lactamase and Its Genomic Context in Plasmids from Salmonella enterica Serovar Derby Isolates from Uruguay

    Article • Antimicrobial Agents and Chemotherapy, February 2006, ASM Journals

    Dr Rafael Vignoli, Professor Gabriel O. Gutkind, Dr Pablo Power

  47. Enteropathogenic Escherichia coli Strains Carrying Genes Encoding the PER-2 and TEM-116 Extended-Spectrum  -Lactamases Isolated from Children with Diarrhea in Uruguay

    Article • Journal of Clinical Microbiology, June 2005, ASM Journals

    Dr Rafael Vignoli, Professor Gabriel O. Gutkind, Dr Pablo Power

  48. Description of In116, the first blaCTX-M-2-containing complex class 1 integron found in Morganella morganii isolates from Buenos Aires, Argentina

    Article • Journal of Antimicrobial Chemotherapy, April 2005, Oxford University Press (OUP)

    Professor Gabriel O. Gutkind, Dr Pablo Power

  49. Chromosome-Encoded CTX-M-3 from Kluyvera ascorbata: a Possible Origin of Plasmid-Borne CTX-M-1-Derived Cefotaximases

    Article • Antimicrobial Agents and Chemotherapy, December 2004, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  50. First Class A Carbapenemase Isolated from Enterobacteriaceae in Argentina

    Article • Antimicrobial Agents and Chemotherapy, March 2004, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  51. Novel Class 1 Integron (InS21) Carrying blaCTX-M-2 in Salmonella enterica Serovar Infantis

    Article • Antimicrobial Agents and Chemotherapy, July 2002, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  52. Early Dissemination of CTX-M-Derived Enzymes in South America

    Article • Antimicrobial Agents and Chemotherapy, February 2002, ASM Journals

    Professor Gabriel O. Gutkind, Dr Pablo Power

  53. Comparative in-vitro activities of GD-40 and other beta-lactamase inhibitors against TEM-1 and SHV-2 beta-lactamases

    Article • Journal of Antimicrobial Chemotherapy, February 1998, Oxford University Press (OUP)

    Professor Gabriel O. Gutkind, Dr Pablo Power