PMC:7652766 / 13455-13677 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"550","span":{"begin":171,"end":172},"obj":"Gene"},{"id":"554","span":{"begin":217,"end":219},"obj":"Gene"}],"attributes":[{"id":"A550","pred":"tao:has_database_id","subj":"550","obj":"Gene:43740568"},{"id":"A554","pred":"tao:has_database_id","subj":"554","obj":"Gene:6999"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":" S2 subunits, which are responsible for receptor recognition and membrane fusion, respectively (39). Several articles have experimentally demonstrated that the RDB in the S protein, especially in the S1 region, binds to th"}