PMC:7795856 / 9232-9339 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"214","span":{"begin":49,"end":65},"obj":"Chemical"}],"attributes":[{"id":"A214","pred":"tao:has_database_id","subj":"214","obj":"MESH:D000645"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":", facilitates classical protein precipitation by ammonium sulfate, thus providing an efficient and inexpens"}