Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2033076661', 'doi': 'https://doi.org/10.1093/oxfordjournals.jbchem.a021705', 'title': 'Chemical Structure of Lipid A from Helicobacter pylori Strain 206-1 Lipopolysaccharide', 'display_name': 'Chemical Structure of Lipid A from Helicobacter pylori Strain 206-1 Lipopolysaccharide', 'publication_year': 1997, 'publication_date': '1997-06-01', 'ids': {'openalex': 'https://openalex.org/W2033076661', 'doi': 'https://doi.org/10.1093/oxfordjournals.jbchem.a021705', 'mag': '2033076661', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/9354387'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1093/oxfordjournals.jbchem.a021705', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S184547178', 'display_name': 'The Journal of Biochemistry', 'issn_l': '0021-924X', 'issn': ['0021-924X', '1756-2651'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310311648', 'host_organization_name': 'Oxford University Press', 'host_organization_lineage': ['https://openalex.org/P4310311647', 'https://openalex.org/P4310311648'], 'host_organization_lineage_names': ['University of Oxford', 'Oxford University Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5064598906', 'display_name': 'Yasuo Suda', 'orcid': 'https://orcid.org/0000-0003-4306-9705'}, 'institutions': [{'id': 'https://openalex.org/I98285908', 'display_name': 'Osaka University', 'ror': 'https://ror.org/035t8zc32', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I98285908']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Y. Suda', 'raw_affiliation_strings': ['Department of Chemistry, Graduate School of Science, Osaka University1-1 Machikaneyama, Toyonaka, Osaka 560'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate School of Science, Osaka University1-1 Machikaneyama, Toyonaka, Osaka 560', 'institution_ids': ['https://openalex.org/I98285908']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5042832740', 'display_name': 'Taiji Ogawa', 'orcid': 'https://orcid.org/0000-0001-8279-4040'}, 'institutions': [{'id': 'https://openalex.org/I98285908', 'display_name': 'Osaka University', 'ror': 'https://ror.org/035t8zc32', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I98285908']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'T. Ogawa', 'raw_affiliation_strings': ['Department of Oral Microbiology, Osaka University Dental SchoolSuita, Osaka 565'], 'affiliations': [{'raw_affiliation_string': 'Department of Oral Microbiology, Osaka University Dental SchoolSuita, Osaka 565', 'institution_ids': ['https://openalex.org/I98285908']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5043528766', 'display_name': 'Wataru Kashihara', 'orcid': 'https://orcid.org/0000-0001-8410-4365'}, 'institutions': [{'id': 'https://openalex.org/I137459256', 'display_name': 'Hyogo Medical University', 'ror': 'https://ror.org/001yc7927', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I137459256']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'W. Kashihara', 'raw_affiliation_strings': ['4th Department of Internal Medicine, Hyogo College of MedicineNishinomiya, Hyogo 663'], 'affiliations': [{'raw_affiliation_string': '4th Department of Internal Medicine, Hyogo College of MedicineNishinomiya, Hyogo 663', 'institution_ids': ['https://openalex.org/I137459256']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5023309568', 'display_name': 'Masato Oikawa', 'orcid': 'https://orcid.org/0000-0002-3919-811X'}, 'institutions': [{'id': 'https://openalex.org/I98285908', 'display_name': 'Osaka University', 'ror': 'https://ror.org/035t8zc32', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I98285908']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'M. Oikawa', 'raw_affiliation_strings': ['Department of Chemistry, Graduate School of Science, Osaka University1-1 Machikaneyama, Toyonaka, Osaka 560'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate School of Science, Osaka University1-1 Machikaneyama, Toyonaka, Osaka 560', 'institution_ids': ['https://openalex.org/I98285908']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5109120645', 'display_name': 'T. Shimoyama', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I137459256', 'display_name': 'Hyogo Medical University', 'ror': 'https://ror.org/001yc7927', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I137459256']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'T. Shimoyama', 'raw_affiliation_strings': ['4th Department of Internal Medicine, Hyogo College of MedicineNishinomiya, Hyogo 663'], 'affiliations': [{'raw_affiliation_string': '4th Department of Internal Medicine, Hyogo College of MedicineNishinomiya, Hyogo 663', 'institution_ids': ['https://openalex.org/I137459256']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5043571039', 'display_name': 'Tomoko Hayashi', 'orcid': 'https://orcid.org/0000-0002-9589-8348'}, 'institutions': [{'id': 'https://openalex.org/I137459256', 'display_name': 'Hyogo Medical University', 'ror': 'https://ror.org/001yc7927', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I137459256']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'T. Hayashi', 'raw_affiliation_strings': ['department of Bacteriology, Hyogo College of MedicineNishinomiya, Hyogo 663'], 'affiliations': [{'raw_affiliation_string': 'department of Bacteriology, Hyogo College of MedicineNishinomiya, Hyogo 663', 'institution_ids': ['https://openalex.org/I137459256']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5111762799', 'display_name': 'T. Tamura', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I137459256', 'display_name': 'Hyogo Medical University', 'ror': 'https://ror.org/001yc7927', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I137459256']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'T. Tamura', 'raw_affiliation_strings': ['department of Bacteriology, Hyogo College of MedicineNishinomiya, Hyogo 663'], 'affiliations': [{'raw_affiliation_string': 'department of Bacteriology, Hyogo College of MedicineNishinomiya, Hyogo 663', 'institution_ids': ['https://openalex.org/I137459256']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5077367961', 'display_name': 'S. Kusumoto', 'orcid': 'https://orcid.org/0000-0002-4551-6719'}, 'institutions': [{'id': 'https://openalex.org/I98285908', 'display_name': 'Osaka University', 'ror': 'https://ror.org/035t8zc32', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I98285908']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'S. Kusumoto', 'raw_affiliation_strings': ['Department of Chemistry, Graduate School of Science, Osaka University1-1 Machikaneyama, Toyonaka, Osaka 560'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate School of Science, Osaka University1-1 Machikaneyama, Toyonaka, Osaka 560', 'institution_ids': ['https://openalex.org/I98285908']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3000, 'currency': 'USD', 'value_usd': 3000, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 2.944, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 67, 'citation_normalized_percentile': {'value': 0.954762, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 94, 'max': 95}, 'biblio': {'volume': '121', 'issue': '6', 'first_page': '1129', 'last_page': '1133'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10276', 'display_name': 'Helicobacter pylori-related gastroenterology studies', 'score': 0.9994, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10276', 'display_name': 'Helicobacter pylori-related gastroenterology studies', 'score': 0.9994, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T13791', 'display_name': 'Veterinary medicine and infectious diseases', 'score': 0.9876, 'subfield': {'id': 'https://openalex.org/subfields/3404', 'display_name': 'Small Animals'}, 'field': {'id': 'https://openalex.org/fields/34', 'display_name': 'Veterinary'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T11316', 'display_name': 'Mycobacterium research and diagnosis', 'score': 0.9692, 'subfield': {'id': 'https://openalex.org/subfields/2713', 'display_name': 'Epidemiology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/lipid-a', 'display_name': 'Lipid A', 'score': 0.9551547}, {'id': 'https://openalex.org/keywords/disaccharide', 'display_name': 'Disaccharide', 'score': 0.8150878}, {'id': 'https://openalex.org/keywords/strain', 'display_name': 'Strain (injury)', 'score': 0.657161}, {'id': 'https://openalex.org/keywords/chemical-structure', 'display_name': 'Chemical structure', 'score': 0.4334601}], 'concepts': [{'id': 'https://openalex.org/C144464004', 'wikidata': 'https://www.wikidata.org/wiki/Q3077338', 'display_name': 'Lipid A', 'level': 3, 'score': 0.9551547}, {'id': 'https://openalex.org/C2778125326', 'wikidata': 'https://www.wikidata.org/wiki/Q327506', 'display_name': 'Glucosamine', 'level': 2, 'score': 0.81748587}, {'id': 'https://openalex.org/C2777346074', 'wikidata': 'https://www.wikidata.org/wiki/Q173600', 'display_name': 'Disaccharide', 'level': 2, 'score': 0.8150878}, {'id': 'https://openalex.org/C2778754761', 'wikidata': 'https://www.wikidata.org/wiki/Q421804', 'display_name': 'Lipopolysaccharide', 'level': 2, 'score': 0.79773676}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.68584466}, {'id': 'https://openalex.org/C2778022156', 'wikidata': 'https://www.wikidata.org/wiki/Q576145', 'display_name': 'Strain (injury)', 'level': 2, 'score': 0.657161}, {'id': 'https://openalex.org/C2776409635', 'wikidata': 'https://www.wikidata.org/wiki/Q180556', 'display_name': 'Helicobacter pylori', 'level': 2, 'score': 0.6312887}, {'id': 'https://openalex.org/C2777132085', 'wikidata': 'https://www.wikidata.org/wiki/Q46220103', 'display_name': 'Phosphate', 'level': 2, 'score': 0.53590924}, {'id': 'https://openalex.org/C543025807', 'wikidata': 'https://www.wikidata.org/wiki/Q61476', 'display_name': 'Fatty acid', 'level': 2, 'score': 0.50028014}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.46909487}, {'id': 'https://openalex.org/C71240020', 'wikidata': 'https://www.wikidata.org/wiki/Q186011', 'display_name': 'Stereochemistry', 'level': 1, 'score': 0.44016916}, {'id': 'https://openalex.org/C175528265', 'wikidata': 'https://www.wikidata.org/wiki/Q500256', 'display_name': 'Chemical structure', 'level': 2, 'score': 0.4334601}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.1904817}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.18597755}, {'id': 'https://openalex.org/C203014093', 'wikidata': 'https://www.wikidata.org/wiki/Q101929', 'display_name': 'Immunology', 'level': 1, 'score': 0.052280545}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C105702510', 'wikidata': 'https://www.wikidata.org/wiki/Q514', 'display_name': 'Anatomy', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D016480', 'descriptor_name': 'Helicobacter pylori', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D008050', 'descriptor_name': 'Lipid A', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D008070', 'descriptor_name': 'Lipopolysaccharides', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D002240', 'descriptor_name': 'Carbohydrate Sequence', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D016480', 'descriptor_name': 'Helicobacter pylori', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008050', 'descriptor_name': 'Lipid A', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008070', 'descriptor_name': 'Lipopolysaccharides', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009682', 'descriptor_name': 'Magnetic Resonance Spectroscopy', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008969', 'descriptor_name': 'Molecular Sequence Data', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D015394', 'descriptor_name': 'Molecular Structure', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1093/oxfordjournals.jbchem.a021705', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S184547178', 'display_name': 'The Journal of Biochemistry', 'issn_l': '0021-924X', 'issn': ['0021-924X', '1756-2651'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310311648', 'host_organization_name': 'Oxford University Press', 'host_organization_lineage': ['https://openalex.org/P4310311647', 'https://openalex.org/P4310311648'], 'host_organization_lineage_names': ['University of Oxford', 'Oxford University Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/9354387', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W4246797560', 'https://openalex.org/W3023950295', 'https://openalex.org/W2313849458', 'https://openalex.org/W2136540250', 'https://openalex.org/W2120398475', 'https://openalex.org/W2069467876', 'https://openalex.org/W2019906885', 'https://openalex.org/W1974431382', 'https://openalex.org/W1534223270', 'https://openalex.org/W1496932806'], 'abstract_inverted_index': {'The': [0, 44], 'chemical': [1], 'structure': [2], 'of': [3, 17, 46, 66, 81], 'a': [4, 12, 26, 47], 'novel': [5], 'lipid': [6, 79], 'A,': [7], 'which': [8], 'was': [9, 22], 'obtained': [10], 'as': [11], 'major': [13], 'component': [14], 'from': [15, 77], 'lipopolysaccharide': [16], 'Helicobacter': [18], 'pylori': [19], 'strain': [20], '206-1,': [21], 'determined': [23], 'to': [24], 'be': [25], 'glucosamine': [27], 'β(1-6)': [28], 'disaccharide': [29], '1-(2-aminoethyl)phosphate': [30], 'acylated': [31], 'by': [32], '(R)-3-hydroxyoctadecanoic': [33], 'acid': [34, 37], 'and': [35, 41, 53, 60, 62], '(R)-3-(octadecanoyloxy)octadecanoic': [36], 'at': [38, 50, 57, 69], 'the': [39, 51, 58, 63, 70, 78], '2-': [40], '2′-position,': [42], 'respectively.': [43], 'absence': [45], 'phosphoryl': [48], 'group': [49], '4′-position': [52], 'fatty': [54], 'acyl': [55], 'groups': [56], '3-': [59], '3′-position,': [61], 'stoichiometric': [64], 'presence': [65], '2-aminoethyl': [67], 'phosphate': [68], '1-position': [71], 'are': [72], 'unique': [73], 'features,': [74], 'distinguishing': [75], 'it': [76], 'A': [80], 'enterobacteria.': [82]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2033076661', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 2}, {'year': 2013, 'cited_by_count': 4}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2025-01-12T01:10:12.083874', 'created_date': '2016-06-24'}