Todd Holyoak

Todd Holyoak is an Associate Professor in the Department of Biology, Faculty of Science, at the University of Waterloo. His research program investigates enzyme structure, mechanism, inhibition, and allostery, with a focus on conformational plasticity in enzymes such as phosphoenolpyruvate carboxykinase (PEPCK) and IgA1 proteases.

Education:

• Ph.D. in Biochemistry, University of Notre Dame, 2000
• B.Sc. in Biochemistry, University of Waterloo, 1994

Research Interests: His laboratory explores the dynamic aspects of enzyme structure using PEPCK and IgA1 proteases as model systems. Key investigations include conformational plasticity in enzyme catalysis, substrate selectivity mechanisms, and allosteric regulation. This work bridges structural biology, enzymology, and microbial pathogenesis, with implications for diabetes therapeutics and antibacterial strategies. The lab employs steady-state kinetics and X-ray crystallography to dissect molecular mechanisms.

Publication Trends: Holyoak's recent publications (2008-2016) reveal a consistent focus on protein dynamics in enzyme function. His work demonstrates how conformational changes govern catalytic efficiency in PEPCK (relevant to diabetes and cancer) and substrate specificity in bacterial IgA1 proteases (critical for pathogenesis). The research integrates structural and kinetic approaches to address fundamental questions in enzymology while advancing drug discovery applications.

Scientific Awards:

• No awards listed in the provided information

Advising and Grants: Professor Holyoak teaches undergraduate courses including BIOL 130 (Introductory Cell Biology), BIOL 439 (Environmental and Natural Products Biochemistry), and BIOL 465 (Structural Bioinformatics). The text provides no details about research grants, student advising, or funded projects.

Laboratory: He directs the Holyoak Lab, affiliated with the Waterloo Centre for Microbial Research. The lab utilizes X-ray crystallography and kinetic analyses to investigate enzyme mechanisms, with particular emphasis on conformational dynamics in PEPCK and bacterial proteases. His research has led to two patents related to IgA1 protease agents and PEPCK inhibition.