PMC:7652766 / 10334-10621 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"438","span":{"begin":147,"end":152},"obj":"Gene"},{"id":"439","span":{"begin":23,"end":28},"obj":"Gene"},{"id":"448","span":{"begin":181,"end":182},"obj":"Gene"},{"id":"449","span":{"begin":10,"end":11},"obj":"Gene"}],"attributes":[{"id":"A438","pred":"tao:has_database_id","subj":"438","obj":"Gene:5045"},{"id":"A439","pred":"tao:has_database_id","subj":"439","obj":"Gene:5045"},{"id":"A448","pred":"tao:has_database_id","subj":"448","obj":"Gene:351"},{"id":"A449","pred":"tao:has_database_id","subj":"449","obj":"Gene:351"}],"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":"esence of a polybasic (furin) cleavage site at the S1 and S2 boundary, via the insertion of twelve nucleotides, which allows effective cleavage by furin and other proteases and has a role in determining viral tropism, infectivity, and host range (4).\nSuch genomic changes also affected t"}