Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2052960183', 'doi': 'https://doi.org/10.1016/s0006-3495(95)80263-8', 'title': 'Dimensions of the narrow portion of a recombinant NMDA receptor channel', 'display_name': 'Dimensions of the narrow portion of a recombinant NMDA receptor channel', 'publication_year': 1995, 'publication_date': '1995-03-01', 'ids': {'openalex': 'https://openalex.org/W2052960183', 'doi': 'https://doi.org/10.1016/s0006-3495(95)80263-8', 'mag': '2052960183', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/7538803', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/1281811'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/s0006-3495(95)80263-8', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S98085912', 'display_name': 'Biophysical Journal', 'issn_l': '0006-3495', 'issn': ['0006-3495', '1542-0086'], 'is_oa': False, 'is_in_doaj': False, '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': 'publisher-specific-oa', 'license_id': 'https://openalex.org/licenses/publisher-specific-oa', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://doi.org/10.1016/s0006-3495(95)80263-8', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5090891496', 'display_name': 'A Villarroel', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I149899117', 'display_name': 'Max Planck Society', 'ror': 'https://ror.org/01hhn8329', 'country_code': 'DE', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I149899117']}, {'id': 'https://openalex.org/I4210087042', 'display_name': 'Max Planck Institute for Medical Research', 'ror': 'https://ror.org/000bxzc63', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210087042']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'A. Villarroel', 'raw_affiliation_strings': ['Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society'], 'affiliations': [{'raw_affiliation_string': 'Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society', 'institution_ids': ['https://openalex.org/I149899117', 'https://openalex.org/I4210087042']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5050027665', 'display_name': 'Nail Burnashev', 'orcid': 'https://orcid.org/0000-0002-0478-3810'}, 'institutions': [{'id': 'https://openalex.org/I149899117', 'display_name': 'Max Planck Society', 'ror': 'https://ror.org/01hhn8329', 'country_code': 'DE', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I149899117']}, {'id': 'https://openalex.org/I4210087042', 'display_name': 'Max Planck Institute for Medical Research', 'ror': 'https://ror.org/000bxzc63', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210087042']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'N. Burnashev', 'raw_affiliation_strings': ['Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society'], 'affiliations': [{'raw_affiliation_string': 'Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society', 'institution_ids': ['https://openalex.org/I149899117', 'https://openalex.org/I4210087042']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5082041058', 'display_name': 'Bert Sakmann', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I149899117', 'display_name': 'Max Planck Society', 'ror': 'https://ror.org/01hhn8329', 'country_code': 'DE', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I149899117']}, {'id': 'https://openalex.org/I4210087042', 'display_name': 'Max Planck Institute for Medical Research', 'ror': 'https://ror.org/000bxzc63', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210087042']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'B. Sakmann', 'raw_affiliation_strings': ['Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society'], 'affiliations': [{'raw_affiliation_string': 'Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society', 'institution_ids': ['https://openalex.org/I149899117', 'https://openalex.org/I4210087042']}]}], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2500, 'currency': 'USD', 'value_usd': 2500, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 4.251, 'has_fulltext': False, 'cited_by_count': 121, 'citation_normalized_percentile': {'value': 0.926822, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 96, 'max': 97}, 'biblio': {'volume': '68', 'issue': '3', 'first_page': '866', 'last_page': '875'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10077', 'display_name': 'Molecular Mechanisms of Synaptic Plasticity and Neurological Disorders', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2804', 'display_name': 'Cellular and Molecular Neuroscience'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10077', 'display_name': 'Molecular Mechanisms of Synaptic Plasticity and Neurological Disorders', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2804', 'display_name': 'Cellular and Molecular Neuroscience'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T10493', 'display_name': 'Molecular Mechanisms of Ion Channels Regulation', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T10581', 'display_name': 'Neuronal Oscillations in Cortical Networks', 'score': 0.9954, 'subfield': {'id': 'https://openalex.org/subfields/2805', 'display_name': 'Cognitive Neuroscience'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/tetramethylammonium', 'display_name': 'Tetramethylammonium', 'score': 0.9455842}, {'id': 'https://openalex.org/keywords/tetraethylammonium', 'display_name': 'Tetraethylammonium', 'score': 0.8710155}, {'id': 'https://openalex.org/keywords/reversal-potential', 'display_name': 'Reversal potential', 'score': 0.65998}, {'id': 'https://openalex.org/keywords/nmda-receptors', 'display_name': 'NMDA Receptors', 'score': 0.63666}, {'id': 'https://openalex.org/keywords/glutamate-receptors', 'display_name': 'Glutamate Receptors', 'score': 0.530765}, {'id': 'https://openalex.org/keywords/voltage-gated-channels', 'display_name': 'Voltage-Gated Channels', 'score': 0.523491}, {'id': 'https://openalex.org/keywords/choline', 'display_name': 'Choline', 'score': 0.41119075}], 'concepts': [{'id': 'https://openalex.org/C2781463628', 'wikidata': 'https://www.wikidata.org/wiki/Q153485', 'display_name': 'Tetramethylammonium', 'level': 3, 'score': 0.9455842}, {'id': 'https://openalex.org/C2781295685', 'wikidata': 'https://www.wikidata.org/wiki/Q410728', 'display_name': 'Tetraethylammonium', 'level': 3, 'score': 0.8710155}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.8465098}, {'id': 'https://openalex.org/C2778071365', 'wikidata': 'https://www.wikidata.org/wiki/Q3089249', 'display_name': 'Reversal potential', 'level': 4, 'score': 0.65998}, {'id': 'https://openalex.org/C28406088', 'wikidata': 'https://www.wikidata.org/wiki/Q5571762', 'display_name': 'Extracellular', 'level': 2, 'score': 0.5378472}, {'id': 'https://openalex.org/C12554922', 'wikidata': 'https://www.wikidata.org/wiki/Q7100', 'display_name': 'Biophysics', 'level': 1, 'score': 0.53054553}, {'id': 'https://openalex.org/C2781014771', 'wikidata': 'https://www.wikidata.org/wiki/Q413961', 'display_name': 'Tris', 'level': 2, 'score': 0.476121}, {'id': 'https://openalex.org/C121932024', 'wikidata': 'https://www.wikidata.org/wiki/Q5159376', 'display_name': 'Conductance', 'level': 2, 'score': 0.45750666}, {'id': 'https://openalex.org/C67018056', 'wikidata': 'https://www.wikidata.org/wiki/Q414896', 'display_name': 'NMDA receptor', 'level': 3, 'score': 0.4467573}, {'id': 'https://openalex.org/C2779870022', 'wikidata': 'https://www.wikidata.org/wiki/Q190901', 'display_name': 'Ammonium', 'level': 2, 'score': 0.4320119}, {'id': 'https://openalex.org/C2779535977', 'wikidata': 'https://www.wikidata.org/wiki/Q1342298', 'display_name': 'Xenopus', 'level': 3, 'score': 0.42914248}, {'id': 'https://openalex.org/C4141045', 'wikidata': 'https://www.wikidata.org/wiki/Q83183', 'display_name': 'Depolarization', 'level': 2, 'score': 0.4153976}, {'id': 'https://openalex.org/C50254741', 'wikidata': 'https://www.wikidata.org/wiki/Q62536', 'display_name': 'Ion channel', 'level': 3, 'score': 0.41536844}, {'id': 'https://openalex.org/C2781123555', 'wikidata': 'https://www.wikidata.org/wiki/Q193166', 'display_name': 'Choline', 'level': 2, 'score': 0.41119075}, {'id': 'https://openalex.org/C145148216', 'wikidata': 'https://www.wikidata.org/wiki/Q36496', 'display_name': 'Ion', 'level': 2, 'score': 0.37637174}, {'id': 'https://openalex.org/C147944092', 'wikidata': 'https://www.wikidata.org/wiki/Q176366', 'display_name': 'Patch clamp', 'level': 3, 'score': 0.35440078}, {'id': 'https://openalex.org/C170493617', 'wikidata': 'https://www.wikidata.org/wiki/Q208467', 'display_name': 'Receptor', 'level': 2, 'score': 0.30867213}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.24142915}, {'id': 'https://openalex.org/C517785266', 'wikidata': 'https://www.wikidata.org/wiki/Q703', 'display_name': 'Potassium', 'level': 2, 'score': 0.23042676}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.08589375}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C114614502', 'wikidata': 'https://www.wikidata.org/wiki/Q76592', 'display_name': 'Combinatorics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C104317684', 'wikidata': 'https://www.wikidata.org/wiki/Q7187', 'display_name': 'Gene', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D016194', 'descriptor_name': 'Receptors, N-Methyl-D-Aspartate', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D055592', 'descriptor_name': 'Biophysical Phenomena', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001703', 'descriptor_name': 'Biophysics', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002412', 'descriptor_name': 'Cations', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002460', 'descriptor_name': 'Cell Line', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004563', 'descriptor_name': 'Electrochemistry', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007473', 'descriptor_name': 'Ion Channels', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007473', 'descriptor_name': 'Ion Channels', 'qualifier_ui': 'Q000037', 'qualifier_name': 'antagonists & inhibitors', 'is_major_topic': False}, {'descriptor_ui': 'D007473', 'descriptor_name': 'Ion Channels', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': False}, {'descriptor_ui': 'D007473', 'descriptor_name': 'Ion Channels', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': False}, {'descriptor_ui': 'D017136', 'descriptor_name': 'Ion Transport', '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}, {'descriptor_ui': 'D009865', 'descriptor_name': 'Oocytes', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010539', 'descriptor_name': 'Permeability', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D016194', 'descriptor_name': 'Receptors, N-Methyl-D-Aspartate', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D016194', 'descriptor_name': 'Receptors, N-Methyl-D-Aspartate', 'qualifier_ui': 'Q000037', 'qualifier_name': 'antagonists & inhibitors', 'is_major_topic': False}, {'descriptor_ui': 'D016194', 'descriptor_name': 'Receptors, N-Methyl-D-Aspartate', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': False}, {'descriptor_ui': 'D011994', 'descriptor_name': 'Recombinant Proteins', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': False}, {'descriptor_ui': 'D011994', 'descriptor_name': 'Recombinant Proteins', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011994', 'descriptor_name': 'Recombinant Proteins', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': False}, {'descriptor_ui': 'D011994', 'descriptor_name': 'Recombinant Proteins', 'qualifier_ui': 'Q000037', 'qualifier_name': 'antagonists & inhibitors', 'is_major_topic': False}, {'descriptor_ui': 'D014982', 'descriptor_name': 'Xenopus laevis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 4, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/s0006-3495(95)80263-8', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S98085912', 'display_name': 'Biophysical Journal', 'issn_l': '0006-3495', 'issn': ['0006-3495', '1542-0086'], 'is_oa': False, 'is_in_doaj': False, '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': 'publisher-specific-oa', 'license_id': 'https://openalex.org/licenses/publisher-specific-oa', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc1281811', 'pdf_url': 'https://europepmc.org/articles/pmc1281811?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1281811', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, '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': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/7538803', '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': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1016/s0006-3495(95)80263-8', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S98085912', 'display_name': 'Biophysical Journal', 'issn_l': '0006-3495', 'issn': ['0006-3495', '1542-0086'], 'is_oa': False, 'is_in_doaj': False, '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': 'publisher-specific-oa', 'license_id': 'https://openalex.org/licenses/publisher-specific-oa', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'display_name': 'Clean water and sanitation', 'score': 0.47, 'id': 'https://metadata.un.org/sdg/6'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 40, 'referenced_works': ['https://openalex.org/W1533559637', 'https://openalex.org/W1539136314', 'https://openalex.org/W1594111906', 'https://openalex.org/W1954929088', 'https://openalex.org/W1968333334', 'https://openalex.org/W1970288191', 'https://openalex.org/W1978817835', 'https://openalex.org/W1986315354', 'https://openalex.org/W1987636575', 'https://openalex.org/W1997511216', 'https://openalex.org/W2002455415', 'https://openalex.org/W2006361155', 'https://openalex.org/W2009667219', 'https://openalex.org/W2010503307', 'https://openalex.org/W2015426350', 'https://openalex.org/W2018126620', 'https://openalex.org/W2028547793', 'https://openalex.org/W2031368977', 'https://openalex.org/W2031500428', 'https://openalex.org/W2047406636', 'https://openalex.org/W2052041955', 'https://openalex.org/W2052093835', 'https://openalex.org/W2053980736', 'https://openalex.org/W2057315110', 'https://openalex.org/W2059334396', 'https://openalex.org/W2065169750', 'https://openalex.org/W2074340804', 'https://openalex.org/W2089131634', 'https://openalex.org/W2098233551', 'https://openalex.org/W2099061204', 'https://openalex.org/W2106006747', 'https://openalex.org/W2111157782', 'https://openalex.org/W2122010285', 'https://openalex.org/W2126948267', 'https://openalex.org/W2133464980', 'https://openalex.org/W2140202493', 'https://openalex.org/W2148343974', 'https://openalex.org/W2166419272', 'https://openalex.org/W2412223893', 'https://openalex.org/W3022526878'], 'related_works': ['https://openalex.org/W2463041108', 'https://openalex.org/W2384512550', 'https://openalex.org/W2288331821', 'https://openalex.org/W2088281397', 'https://openalex.org/W2080931623', 'https://openalex.org/W2055830121', 'https://openalex.org/W2045286669', 'https://openalex.org/W2036354671', 'https://openalex.org/W1981906372', 'https://openalex.org/W1971725255'], 'abstract_inverted_index': {'Glutamate-activated': [0], 'single-channel': [1, 84, 165], 'and': [2, 11, 23, 32, 46, 65, 107, 113, 147, 155, 164, 188], 'ensemble': [3], 'currents': [4], 'were': [5, 35, 159], 'recorded': [6], 'from': [7, 21, 99], 'Xenopus': [8], 'laevis': [9], 'oocytes': [10], 'HEK': [12], '293': [13], 'cells': [14], 'expressing': [15], 'a': [16, 80, 111, 213], 'recombinant': [17], 'NMDA': [18, 184], 'receptor,': [19], 'assembled': [20], 'NR1': [22], 'NR2A': [24], 'subunits.': [25], 'Cesium': [26], 'was': [27], 'the': [28, 39, 74, 97, 131, 134, 162, 175, 183, 207], 'main': [29], 'charge': [30], 'carrier,': [31], 'organic': [33, 54, 168], 'cations': [34, 55, 104, 137, 195], 'used': [36], 'to': [37, 47, 73, 171, 197, 211], 'determine': [38], 'presence': [40], 'of': [41, 43, 83, 167, 206, 216], 'vestibules': [42], 'this': [44], 'channel': [45, 98], 'estimate': [48], 'its': [49], 'pore': [50, 208], 'diameter.': [51, 202], 'The': [52, 102, 179, 203], 'large': [53, 135, 194], 'tris-(hydroxymethyl)-aminomethane': [56], '(Tris),': [57], 'N-methyl-glucamine': [58], '(NMG),': [59, 61], 'arginine': [60, 62], '(Arg),': [63], 'choline,': [64, 142], 'tetramethylammonium': [66], '(TMA),': [67], 'when': [68], 'added': [69], 'in': [70, 117, 200], 'millimolar': [71], 'concentrations': [72], 'extracellular': [75, 187], 'or': [76], 'cytoplasmic': [77, 189], 'side,': [78], 'produced': [79, 110], 'voltage-dependent': [81], 'blockade': [82], 'Cs+': [85, 129], 'currents.': [86], 'These': [87], 'molecules': [88], 'behaved': [89], 'as': [90, 130, 174], 'impermeant': [91], 'ions': [92], 'that': [93, 121, 182, 191], 'only': [94], 'partially': [95], 'traverse': [96], 'either': [100], 'side.': [101], 'smaller': [103, 156], 'trimethylammonium': [105], '(TriMA)': [106], 'dimethylammonium': [108], '(DMA)': [109], 'small': [112], 'nearly': [114], 'voltage-independent': [115], 'reduction': [116], 'current': [118], 'amplitude,': [119], 'suggesting': [120], 'they': [122], 'are': [123], 'permeant.': [124, 160], 'In': [125], 'biionic': [126], 'experiments': [127], 'with': [128], 'reference': [132], 'ion,': [133], 'blocking': [136], 'NMG,': [138], 'Arg,': [139], 'Tris,': [140], 'TMA,': [141], 'hexamethonium': [143], '(Hme),': [144], 'triethylammonium': [145], '(TriEA),': [146], 'tetraethylammonium': [148], '(TEA)': [149], 'showed': [150], 'no': [151], 'measurable': [152], 'permeability.': [153], 'TriMA': [154], 'ammonium': [157], 'derivatives': [158], 'Both': [161], 'permeability': [163], 'conductance': [166], 'cations,': [169], 'relative': [170], 'Cs+,': [172], 'decreased': [173], 'ion': [176], 'size': [177], 'increased.': [178], 'results': [180], 'suggest': [181], 'receptor': [185], 'has': [186], 'mouths': [190], 'can': [192], 'accommodate': [193], 'up': [196], '7.3': [198], 'A': [199], 'mean': [201, 214], 'narrow': [204], 'portion': [205], 'is': [209], 'estimated': [210], 'have': [212], 'diameter': [215], '5.5': [217], 'A.': [218]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2052960183', 'counts_by_year': [{'year': 2024, 'cited_by_count': 2}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 4}, {'year': 2014, 'cited_by_count': 6}, {'year': 2013, 'cited_by_count': 2}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-08-31T19:43:32.998807', 'created_date': '2016-06-24'}