AUTHOR=Kim Sung-Kun , Park Ki Duk , Lee Dong-Woo TITLE=Editorial: Interactions Between Small Molecule Ligands and Target Enzymes JOURNAL=Frontiers in Molecular Biosciences VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/molecular-biosciences/articles/10.3389/fmolb.2021.649450 DOI=10.3389/fmolb.2021.649450 ISSN=2296-889X