PubMed:821948 / 724-774 JSONTXT

{"project":"sentences","denotations":[{"id":"T7","span":{"begin":0,"end":50},"obj":"Sentence"},{"id":"T7","span":{"begin":0,"end":50},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The subunits have little or no catalytic activity."}