PMC:7736111 / 7269-7555 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"136","span":{"begin":46,"end":50},"obj":"Gene"},{"id":"137","span":{"begin":125,"end":132},"obj":"Gene"},{"id":"138","span":{"begin":134,"end":141},"obj":"Gene"}],"attributes":[{"id":"A136","pred":"tao:has_database_id","subj":"136","obj":"Gene:59272"},{"id":"A137","pred":"tao:has_database_id","subj":"137","obj":"Gene:7113"},{"id":"A138","pred":"tao:has_database_id","subj":"138","obj":"Gene:7113"}],"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":"mbrane of host cells. (2) The attachment with ACE2 is followed by the cleavage of S protein by membrane bound proteases like TMPRSS2. TMPRSS2 cleaves the membrane bound virus at both S1/S2 boundary as well as at S2’ site. (3) This activates the fusion machinery, and subsequently, the v"}