AUTHOR=Xue Yu , Huang Hsien-Da , Song Jiangning , Ren Jian , Xu Dong TITLE=Editorial: Computational Resources for Understanding Biomacromolecular Covalent Modifications JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2021.728127 DOI=10.3389/fcell.2021.728127 ISSN=2296-634X