PMC:7795856 / 9297-9501 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"215","span":{"begin":153,"end":169},"obj":"Chemical"}],"attributes":[{"id":"A215","pred":"tao:has_database_id","subj":"215","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":", thus providing an efficient and inexpensive purification step. After adjusting the cleared whole cell extract prepared by mechanical cell lysis to 30% ammonium sulfate saturation, most of the host cell "}