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ASM Attends UN General Assembly

ASM President, Susan Sharp, Ph.D., joined global leaders at the United Nations General Assembly in New York today in a historical meeting to focus on the commitment to fight AMR.
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UN General Assembly Focuses on AMR

Leaders at the UN General Assembly draft a plan for coordinated, cross-cutting efforts to improve the current state of AMR.
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Superbugs are a 'Fundamental Threat'

If antibiotics were telephones, we would still be calling each other using clunky rotary dials and copper lines," Stefano Bertuzzi, CEO of ASM, told NBC News.
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dean dennisThe major emphasis of work in Dr. Dean's laboratory involves:

  1. the biochemical-genetic analysis of nitrogenase catalysis and
  2. the molecular mechanisms of metallocluster formation.

Nitrogenase is the catalytic component of biological nitrogen fixation. It is a complex, two-component metalloenzyme that couples MgATP hydrolysis to the reduction of dinitrogen. In one project Dr. Dean is dissecting the inter- and intramolecular pathways involved in substrate reduction by using molecular genetic techniques developed in this laboratory to place known amino acid substitutions within the component proteins. Through the biochemical and biophysical characterization of such altered proteins we are gaining insight into how the enzyme complex works. A second project is related to understanding how the metalloclusters required for nitrogenase activity are assembled and inserted into the nitrogenase component proteins. The work has involved using recombinant DNA techniques to hyperproduce polypeptides involved in the process together with the development of in vitro metallocluster assembly pathways. Dr. Dean's laboratory enjoys a close association with the Metalloenzyme Center at the University of Georgia and there are currently active collaborations between this laboratory and colleagues at Wisconsin, Northwestern, Purdue, and Minnesota. The laboratory is housed in the new Fralin Biotechnology Center and is equipped with state of the art facilities for fermentation, anaerobic purification and handling of oxygen sensitive proteins, recombinant DNA techniques, and computer-assisted molecular modelling of three-dimensional structures.

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