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   Lo Verde, Christine; Pepra-Ameyaw, Nana Baah; Drucker, Charles T.; Okumura, Tracie L.S.; Lyon, Katherine A.; Muniz, Julia C.; Sermet, Chloe S.; Were Senger, Lilian; Owens, Cedric P. (December 2022, Food Research International)
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3. Bio-based molecular imprinted polymers for separation and purification of chlorogenic acid extracted from food waste

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4. Wound Healing Potential of Chlorogenic Acid and Myricetin-3-O-β-Rhamnoside Isolated from Parrotia persica

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5. The structure of a Lactobacillus helveticus chlorogenic acid esterase and the dynamics of its insertion domain provide insights into substrate binding

   https://doi.org/10.1002/1873-3468.14731  

   Omori, Kellie K.; Drucker, Charles T.; Okumura, Tracie L.; Carl, Nathaniel B.; Dinn, Brianna T.; Ly, Destiny; Sacapano, Kylie N.; Tajii, Allie; Owens, Cedric P. (October 2023, FEBS Letters)

   Chlorogenic acid esterases (ChlEs) are a useful class of enzymes that hydrolyze chlorogenic acid (CGA) into caffeic and quinic acids. ChlEs can break down CGA in foods to improve their sensory properties and release caffeic acid in the digestive system to improve the absorption of bioactive compounds. This work presents the structure, molecular dynamics, and biochemical characterization of a ChlE fromLactobacillus helveticus(Lh). Molecular dynamics simulations suggest that substrate access to the active site ofLhChlE is modulated by two hairpin loops above the active site. Docking simulations and mutational analysis suggest that two residues within the loops, Gln₁₄₅and Lys₁₆₄, are important for CGA binding. Lys₁₆₄provides a slight substrate preference for CGA, whereas Gln₁₄₅is required for efficient turnover. This work is the first to examine the dynamics of a bacterial ChlE and provides insights on substrate binding preference and turnover in this type of enzyme. 

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