

Overview
Dr. Susannah M. L. Gagnon is a litigation associate in the San Francisco office of Munger, Tolles & Olson.
With a biochemistry background, Susannah focuses her practice on patent litigation in the life sciences, pharmaceutical and technology industries.
Prior to joining the firm, Susannah was an associate at two Am Law 200 firms in San Francisco providing legal guidance on patent litigation matters and intellectual property portfolio strategies. She completed a judicial internship for the Honorable Lee H. Rosenthal of the U.S. District Court for the Southern District of Texas. Susannah also worked as an independent contractor with Supreme Steel, a Canadian steel provider, assisting with arbitration matters and commercial contract review and risk assessment.
Susannah earned her J.D. from the University of Pennsylvania Law School, where she was a senior editor of the University of Pennsylvania Journal of Business Law. During her doctoral studies, she conducted biochemical research in multiple areas of human health, including the structure and function of the human ABO blood group enzymes as well as select antibodies. Susannah’s research has been published in high-impact journals, and she also has presented her findings at international and national conferences.
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Publications
- “Antitrust Liability for False Advertising: A Response to Carrier & Tushnet,” Iowa Law Review, April 1, 2022
- “Monoclonal Antibody 7H2.2 Binds the C-Terminus of the Cancer-Oocyte Antigen SAS1B Through the Hydrophilic Face of a Conserved Amphipathic Helix Corresponding to One of Only Two Regions Predicted To Be Ordered,” Acta Crystallographica Section D: Structural Biology, March 18, 2022
- “The S-Layer Homology Domains of Paenibacillus Alvei Surface Protein SpaA Bind to Cell Wall Polysaccharide Through the Terminal Monosaccharide Residue,” Journal of Biological Chemistry, Feb. 18, 2022
- “Conserved Residues Arg188 and Asp302 are Critical for Active Site Organization and Catalysis in Human ABO(H) Blood Group A and B Glycosyltransferases,” Glycobiology, Aug. 1, 2018
- “Structural Basis of Cell Wall Anchoring by SLH Domains in Paenibacillus Alvei,” Nature Communications, Jan. 1, 2018
- “High-resolution Crystal Structures and STD NMR Mapping of Human ABO(H) Blood Group Glycosyltransferases in Complex with Trisaccharide Reaction Products Suggest a Molecular Basis for Product Release,” Glycobiology, Oct. 1, 2017
- “Glycosyltransfer in Mutants of Putative Catalytic Residue Glu303 of the Human ABO(H) A and B Blood Group Glycosyltransferases GTA and GTB Proceeds Through a Labile Active Site,” Glycobiology, April 1, 2017
- “Polyspecificity of Anti-lipid A Antibodies and its Relevance to the Development of Autoimmunity,” Advances in Experimental Medicine and Biology, Jan. 1, 2017
- “High Resolution Structures of the Human ABO(H) Blood Group Enzymes in Complex with Donor Analogs Reveal that the Enzymes Utilize Multiple Donor Conformations to Bind Substrates in a Step-Wise Manner,” Journal of Biological Chemistry, Sept. 15, 2015
- “Degradome and Secretome of Pollination Drops of Ephedra,” Botanical Review, Dec. 17, 2014
- “Metabolomic Analysis of Key Central Carbon Metabolism Carboxylic Acids as Their 3-nitrophenylhydrazones by UPLC/ESI-MS,” Electrophoresis, Oct. 1, 2013