Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2012630781', 'doi': 'https://doi.org/10.1016/0921-8777(90)90070-l', 'title': 'A constitutive O6-methylguanine-DNA methyltransferase of Rhizobium meliloti', 'display_name': 'A constitutive O6-methylguanine-DNA methyltransferase of Rhizobium meliloti', 'publication_year': 1990, 'publication_date': '1990-05-01', 'ids': {'openalex': 'https://openalex.org/W2012630781', 'doi': 'https://doi.org/10.1016/0921-8777(90)90070-l', 'mag': '2012630781', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/2188120'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/0921-8777(90)90070-l', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210192122', 'display_name': 'Mutation Research/DNA Repair', 'issn_l': '0921-8777', 'issn': ['0921-8777', '1386-1476'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], '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/A5006040322', 'display_name': 'A. Kaufman', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I63966007', 'display_name': 'Massachusetts Institute of Technology', 'ror': 'https://ror.org/042nb2s44', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I63966007']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Allan Kaufman', 'raw_affiliation_strings': ['Biology Department, Massachusetts Institute of Technology, Cambridge, MA 02139 U.S.A.'], 'affiliations': [{'raw_affiliation_string': 'Biology Department, Massachusetts Institute of Technology, Cambridge, MA 02139 U.S.A.', 'institution_ids': ['https://openalex.org/I63966007']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5112719442', 'display_name': 'Graham C. Walker', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I63966007', 'display_name': 'Massachusetts Institute of Technology', 'ror': 'https://ror.org/042nb2s44', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I63966007']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Graham C. Walker', 'raw_affiliation_strings': ['Biology Department, Massachusetts Institute of Technology, Cambridge, MA 02139 U.S.A.'], 'affiliations': [{'raw_affiliation_string': 'Biology Department, Massachusetts Institute of Technology, Cambridge, MA 02139 U.S.A.', 'institution_ids': ['https://openalex.org/I63966007']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 3.402, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 7, 'citation_normalized_percentile': {'value': 0.695758, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 75, 'max': 76}, 'biblio': {'volume': '235', 'issue': '3', 'first_page': '165', 'last_page': '169'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11470', 'display_name': 'Legume Nitrogen Fixing Symbiosis', 'score': 0.9979, 'subfield': {'id': 'https://openalex.org/subfields/1110', 'display_name': 'Plant Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11470', 'display_name': 'Legume Nitrogen Fixing Symbiosis', 'score': 0.9979, 'subfield': {'id': 'https://openalex.org/subfields/1110', 'display_name': 'Plant Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/o-6-methylguanine-dna-methyltransferase', 'display_name': 'O-6-methylguanine-DNA methyltransferase', 'score': 0.7222644}, {'id': 'https://openalex.org/keywords/dna-methyltransferase', 'display_name': 'DNA methyltransferase', 'score': 0.7026552}, {'id': 'https://openalex.org/keywords/residue', 'display_name': 'Residue (chemistry)', 'score': 0.6373282}], 'concepts': [{'id': 'https://openalex.org/C91965660', 'wikidata': 'https://www.wikidata.org/wiki/Q415875', 'display_name': 'Methyltransferase', 'level': 4, 'score': 0.8640115}, {'id': 'https://openalex.org/C2780434414', 'wikidata': 'https://www.wikidata.org/wiki/Q830142', 'display_name': 'Rhizobium', 'level': 3, 'score': 0.860438}, {'id': 'https://openalex.org/C2779527866', 'wikidata': 'https://www.wikidata.org/wiki/Q21118735', 'display_name': 'O-6-methylguanine-DNA methyltransferase', 'level': 5, 'score': 0.7222644}, {'id': 'https://openalex.org/C2779979206', 'wikidata': 'https://www.wikidata.org/wiki/Q1154602', 'display_name': 'DNA methyltransferase', 'level': 5, 'score': 0.7026552}, {'id': 'https://openalex.org/C2781338088', 'wikidata': 'https://www.wikidata.org/wiki/Q903495', 'display_name': 'Residue (chemistry)', 'level': 2, 'score': 0.6373282}, {'id': 'https://openalex.org/C552990157', 'wikidata': 'https://www.wikidata.org/wiki/Q7430', 'display_name': 'DNA', 'level': 2, 'score': 0.5490161}, {'id': 'https://openalex.org/C523546767', 'wikidata': 'https://www.wikidata.org/wiki/Q10876', 'display_name': 'Bacteria', 'level': 2, 'score': 0.4779544}, {'id': 'https://openalex.org/C2779201268', 'wikidata': 'https://www.wikidata.org/wiki/Q186474', 'display_name': 'Cysteine', 'level': 3, 'score': 0.46295792}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.4377761}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.43295172}, {'id': 'https://openalex.org/C134935766', 'wikidata': 'https://www.wikidata.org/wiki/Q210538', 'display_name': 'DNA repair', 'level': 3, 'score': 0.424074}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.37749654}, {'id': 'https://openalex.org/C181199279', 'wikidata': 'https://www.wikidata.org/wiki/Q8047', 'display_name': 'Enzyme', 'level': 2, 'score': 0.28999692}, {'id': 'https://openalex.org/C33288867', 'wikidata': 'https://www.wikidata.org/wiki/Q518328', 'display_name': 'Methylation', 'level': 3, 'score': 0.25327167}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.19333678}, {'id': 'https://openalex.org/C104317684', 'wikidata': 'https://www.wikidata.org/wiki/Q7187', 'display_name': 'Gene', 'level': 2, 'score': 0.18139455}], 'mesh': [{'descriptor_ui': 'D004260', 'descriptor_name': 'DNA Repair', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D004269', 'descriptor_name': 'DNA, Bacterial', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': True}, {'descriptor_ui': 'D008780', 'descriptor_name': 'Methyltransferases', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': True}, {'descriptor_ui': 'D012231', 'descriptor_name': 'Rhizobium', 'qualifier_ui': 'Q000201', 'qualifier_name': 'enzymology', 'is_major_topic': True}, {'descriptor_ui': 'D004269', 'descriptor_name': 'DNA, Bacterial', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D004269', 'descriptor_name': 'DNA, Bacterial', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004926', 'descriptor_name': 'Escherichia coli', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': False}, {'descriptor_ui': 'D004926', 'descriptor_name': 'Escherichia coli', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008745', 'descriptor_name': 'Methylation', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008769', 'descriptor_name': 'Methylnitronitrosoguanidine', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008769', 'descriptor_name': 'Methylnitronitrosoguanidine', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D008780', 'descriptor_name': 'Methyltransferases', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009154', 'descriptor_name': 'Mutation', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D019853', 'descriptor_name': 'O(6)-Methylguanine-DNA Methyltransferase', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012231', 'descriptor_name': 'Rhizobium', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': False}, {'descriptor_ui': 'D012231', 'descriptor_name': 'Rhizobium', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/0921-8777(90)90070-l', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210192122', 'display_name': 'Mutation Research/DNA Repair', 'issn_l': '0921-8777', 'issn': ['0921-8777', '1386-1476'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], '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/2188120', '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_indexed_in_scopus': 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': 22, 'referenced_works': ['https://openalex.org/W133789967', 'https://openalex.org/W1491210457', 'https://openalex.org/W1522835345', 'https://openalex.org/W1531200695', 'https://openalex.org/W1587647201', 'https://openalex.org/W1820357160', 'https://openalex.org/W1964958538', 'https://openalex.org/W1983274728', 'https://openalex.org/W1986818807', 'https://openalex.org/W2012964660', 'https://openalex.org/W2024176530', 'https://openalex.org/W2026195203', 'https://openalex.org/W2040240947', 'https://openalex.org/W2052083735', 'https://openalex.org/W2065845336', 'https://openalex.org/W2084300752', 'https://openalex.org/W2090225545', 'https://openalex.org/W2098448644', 'https://openalex.org/W2115879530', 'https://openalex.org/W2134319315', 'https://openalex.org/W2136028193', 'https://openalex.org/W2176312424'], 'related_works': ['https://openalex.org/W3150980020', 'https://openalex.org/W2372178128', 'https://openalex.org/W2351942949', 'https://openalex.org/W2165434334', 'https://openalex.org/W2110183406', 'https://openalex.org/W2028791115', 'https://openalex.org/W2012630781', 'https://openalex.org/W2011512314', 'https://openalex.org/W1998747830', 'https://openalex.org/W1978530765'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2012630781', 'counts_by_year': [{'year': 2019, 'cited_by_count': 1}], 'updated_date': '2025-01-21T13:59:40.134327', 'created_date': '2016-06-24'}