PubMed:3896488 JSONTXT

{"project":"sentences","denotations":[{"id":"TextSentencer_T1","span":{"begin":0,"end":110},"obj":"Sentence"},{"id":"TextSentencer_T2","span":{"begin":111,"end":389},"obj":"Sentence"},{"id":"TextSentencer_T3","span":{"begin":390,"end":507},"obj":"Sentence"},{"id":"TextSentencer_T4","span":{"begin":508,"end":662},"obj":"Sentence"},{"id":"TextSentencer_T5","span":{"begin":663,"end":786},"obj":"Sentence"},{"id":"T1","span":{"begin":0,"end":110},"obj":"Sentence"},{"id":"T2","span":{"begin":111,"end":389},"obj":"Sentence"},{"id":"T3","span":{"begin":390,"end":507},"obj":"Sentence"},{"id":"T4","span":{"begin":508,"end":662},"obj":"Sentence"},{"id":"T5","span":{"begin":663,"end":786},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Structure of the amino acid-containing capsular polysaccharide (K54 antigen) from Escherichia coli O6:K54:H10.\nThe structure of the K54-antigenic polysaccharide (K54 antigen) of Escherichia coli O6:K54:H10 was elucidated by determination of the composition, 1H- and 13C-n.m.r. spectroscopy, periodate oxidation, and a study of the oligosaccharides obtained by partial hydrolysis with acid. The K54 polysaccharide consists of----3)-beta-D-glucosyluronic acid-(1----3)-alpha-L-rhamnosyl-(1----repeating-units. Of the glucuronic acid residues, approximately 85% are substituted in the ratio 9:1 with L-threonine and L-serine amidically linked to the carboxyl group. The K54 polysaccharide has a molecular weight of approximately 160,000, corresponding to approximately 380 repeating-units."}

{"project":"NCBITAXON","denotations":[{"id":"T1","span":{"begin":82,"end":98},"obj":"OrganismTaxon"},{"id":"T2","span":{"begin":178,"end":194},"obj":"OrganismTaxon"}],"attributes":[{"id":"A1","pred":"db_id","subj":"T1","obj":"562"},{"id":"A2","pred":"db_id","subj":"T2","obj":"562"}],"text":"Structure of the amino acid-containing capsular polysaccharide (K54 antigen) from Escherichia coli O6:K54:H10.\nThe structure of the K54-antigenic polysaccharide (K54 antigen) of Escherichia coli O6:K54:H10 was elucidated by determination of the composition, 1H- and 13C-n.m.r. spectroscopy, periodate oxidation, and a study of the oligosaccharides obtained by partial hydrolysis with acid. The K54 polysaccharide consists of----3)-beta-D-glucosyluronic acid-(1----3)-alpha-L-rhamnosyl-(1----repeating-units. Of the glucuronic acid residues, approximately 85% are substituted in the ratio 9:1 with L-threonine and L-serine amidically linked to the carboxyl group. The K54 polysaccharide has a molecular weight of approximately 160,000, corresponding to approximately 380 repeating-units."}