PMC:7605337 / 33735-33880 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T212","span":{"begin":0,"end":145},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Mutant systems K417A, L455A, T500A, and N501A are the other mutants with total binding affinities significantly lower than the wild type complex."}