PMC:7594251 / 102934-103040 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T681","span":{"begin":0,"end":106},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"To compare, the X-ray crystallography data showed residues 50 and 54–61 to be involved in the interaction."}