PubMed:2824473 / 1008-1144 JSONTXT

{"project":"sentences","denotations":[{"id":"T14","span":{"begin":0,"end":136},"obj":"Sentence"},{"id":"T14","span":{"begin":0,"end":136},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Inositol polyphosphate 1-phosphatase shows a sigmoidal dependence upon magnesium ion, with 0.3 mM Mg2+ causing half-maximal stimulation."}