PMC:7271924 / 30183-30196 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T544","span":{"begin":0,"end":13},"obj":"SO:0000409"},{"id":"T72810","span":{"begin":0,"end":13},"obj":"SO:0000409"}],"text":"binding sites"}