PMC:7795856 / 9611-9751 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"212","span":{"begin":15,"end":22},"obj":"Species"},{"id":"216","span":{"begin":111,"end":115},"obj":"Chemical"}],"attributes":[{"id":"A212","pred":"tao:has_database_id","subj":"212","obj":"Tax:562"},{"id":"A216","pred":"tao:has_database_id","subj":"216","obj":"MESH:D012492"}],"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":"emove residual E. coli proteins, the redissolved precipitate was subjected to ion exchange chromatography on a salt-tolerant anion exchange "}