{"id":"https://openalex.org/W1990147299","doi":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","title":"Regulation of Nitrogen Fixation by Fe\u2010S Protein II in Azotobacter vinelandii","display_name":"Regulation of Nitrogen Fixation by Fe\u2010S Protein II in Azotobacter vinelandii","publication_year":1977,"publication_date":"1977-08-01","ids":{"openalex":"https://openalex.org/W1990147299","doi":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","mag":"1990147299","pmid":"https://pubmed.ncbi.nlm.nih.gov/196854"},"language":"en","primary_location":{"id":"doi:10.1111/j.1432-1033.1977.tb11706.x","doi":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","is_oa":true,"landing_page_url":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/j.1432-1033.1977.tb11706.x","source":{"id":"https://openalex.org/S4210214924","display_name":"European Journal of Biochemistry","issn_l":"0014-2956","issn":["0014-2956","0945-5795","1432-1033"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-100"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Biochemistry","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/j.1432-1033.1977.tb11706.x","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5032697841","display_name":"Gerard Scherings","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Gerard SCHERINGS","raw_affiliation_strings":["Laboratorium voor Biochemie, Landbouwhogeschool, De Dreijen 11, Wageningen, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratorium voor Biochemie, Landbouwhogeschool, De Dreijen 11, Wageningen, The Netherlands","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002313372","display_name":"H. Haaker","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Huub HAAKER","raw_affiliation_strings":["Laboratorium voor Biochemie, Landbouwhogeschool, De Dreijen 11, Wageningen, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratorium voor Biochemie, Landbouwhogeschool, De Dreijen 11, Wageningen, The Netherlands","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5031172878","display_name":"C. Veeger","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Cees VEEGER","raw_affiliation_strings":["Laboratorium voor Biochemie, Landbouwhogeschool, De Dreijen 11, Wageningen, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratorium voor Biochemie, Landbouwhogeschool, De Dreijen 11, Wageningen, The Netherlands","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":12.8394,"has_fulltext":true,"cited_by_count":86,"citation_normalized_percentile":{"value":0.98713074,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"77","issue":"3","first_page":"621","last_page":"630"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11626","display_name":"Metalloenzymes and iron-sulfur proteins","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11626","display_name":"Metalloenzymes and iron-sulfur proteins","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12112","display_name":"Ammonia Synthesis and Nitrogen Reduction","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/1503","display_name":"Catalysis"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10303","display_name":"Photosynthetic Processes and Mechanisms","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/nitrogen-fixation-regulation","display_name":"nitrogen fixation regulation","score":0.6679999828338623},{"id":"https://openalex.org/keywords/nitrogenase","display_name":"nitrogenase","score":0.6589999794960022},{"id":"https://openalex.org/keywords/azotobacter-vinelandii","display_name":"Azotobacter vinelandii","score":0.9739999771118164},{"id":"https://openalex.org/keywords/flavodoxin","display_name":"flavodoxin","score":0.9290000200271606},{"id":"https://openalex.org/keywords/electron-transport","display_name":"electron transport","score":0.7089999914169312},{"id":"https://openalex.org/keywords/photoreduction","display_name":"photoreduction","score":0.5989999771118164},{"id":"https://openalex.org/keywords/electron-carriers","display_name":"electron carriers","score":0.546999990940094}],"concepts":[{"id":"https://openalex.org/C2776159390","wikidata":"https://www.wikidata.org/wiki/Q2157875","display_name":"Azotobacter vinelandii","level":5,"score":0.9544092416763306},{"id":"https://openalex.org/C107563273","wikidata":"https://www.wikidata.org/wiki/Q95352045","display_name":"Flavodoxin","level":4,"score":0.9501013159751892},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.8116496205329895},{"id":"https://openalex.org/C141280058","wikidata":"https://www.wikidata.org/wiki/Q410381","display_name":"Nitrogenase","level":4,"score":0.7468060255050659},{"id":"https://openalex.org/C2777550763","wikidata":"https://www.wikidata.org/wiki/Q419164","display_name":"Hydroquinone","level":2,"score":0.6794545650482178},{"id":"https://openalex.org/C134621786","wikidata":"https://www.wikidata.org/wiki/Q415215","display_name":"Ferredoxin","level":3,"score":0.6764287352561951},{"id":"https://openalex.org/C2777315085","wikidata":"https://www.wikidata.org/wiki/Q2873610","display_name":"Dithionite","level":3,"score":0.5543180108070374},{"id":"https://openalex.org/C2778277410","wikidata":"https://www.wikidata.org/wiki/Q138058","display_name":"Azotobacteraceae","level":5,"score":0.5046464204788208},{"id":"https://openalex.org/C2776740245","wikidata":"https://www.wikidata.org/wiki/Q132995","display_name":"Azotobacter","level":3,"score":0.4734860360622406},{"id":"https://openalex.org/C2776370595","wikidata":"https://www.wikidata.org/wiki/Q3955012","display_name":"Semiquinone","level":3,"score":0.4315081536769867},{"id":"https://openalex.org/C179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","level":1,"score":0.3557353615760803},{"id":"https://openalex.org/C181440489","wikidata":"https://www.wikidata.org/wiki/Q272467","display_name":"Nitrogen fixation","level":3,"score":0.2661106586456299},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.25726038217544556},{"id":"https://openalex.org/C55904794","wikidata":"https://www.wikidata.org/wiki/Q82682","display_name":"Redox","level":2,"score":0.2554454207420349},{"id":"https://openalex.org/C181199279","wikidata":"https://www.wikidata.org/wiki/Q8047","display_name":"Enzyme","level":2,"score":0.22636431455612183},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.21854525804519653},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.1422731876373291},{"id":"https://openalex.org/C523546767","wikidata":"https://www.wikidata.org/wiki/Q10876","display_name":"Bacteria","level":2,"score":0.0843903124332428},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D001395","descriptor_name":"Azotobacter","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D002942","descriptor_name":"Circular Dichroism","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004578","descriptor_name":"Electron Spin Resonance Spectroscopy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004579","descriptor_name":"Electron Transport","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005288","descriptor_name":"Ferredoxins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D007506","descriptor_name":"Iron-Sulfur Proteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D007700","descriptor_name":"Kinetics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008667","descriptor_name":"Metalloproteins","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":true},{"descriptor_ui":"D009586","descriptor_name":"Nitrogen Fixation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009591","descriptor_name":"Nitrogenase","qualifier_ui":"Q000378","qualifier_name":"metabolism","is_major_topic":false},{"descriptor_ui":"D010084","descriptor_name":"Oxidation-Reduction","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011487","descriptor_name":"Protein Conformation","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013053","descriptor_name":"Spectrophotometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1111/j.1432-1033.1977.tb11706.x","doi":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","is_oa":true,"landing_page_url":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/j.1432-1033.1977.tb11706.x","source":{"id":"https://openalex.org/S4210214924","display_name":"European Journal of Biochemistry","issn_l":"0014-2956","issn":["0014-2956","0945-5795","1432-1033"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-100"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Biochemistry","raw_type":"journal-article"},{"id":"pmid:196854","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/196854","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European journal of biochemistry","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1111/j.1432-1033.1977.tb11706.x","doi":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","is_oa":true,"landing_page_url":"https://doi.org/10.1111/j.1432-1033.1977.tb11706.x","pdf_url":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/j.1432-1033.1977.tb11706.x","source":{"id":"https://openalex.org/S4210214924","display_name":"European Journal of Biochemistry","issn_l":"0014-2956","issn":["0014-2956","0945-5795","1432-1033"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-100"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"European Journal of Biochemistry","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1990147299.pdf","grobid_xml":"https://content.openalex.org/works/W1990147299.grobid-xml"},"referenced_works_count":46,"referenced_works":["https://openalex.org/W21704270","https://openalex.org/W117176813","https://openalex.org/W622538735","https://openalex.org/W995099542","https://openalex.org/W1007161724","https://openalex.org/W1512041247","https://openalex.org/W1666554682","https://openalex.org/W1864809073","https://openalex.org/W1890757170","https://openalex.org/W1965219901","https://openalex.org/W1965246707","https://openalex.org/W1967298352","https://openalex.org/W1967640821","https://openalex.org/W1976281187","https://openalex.org/W1991657577","https://openalex.org/W1995147696","https://openalex.org/W2001388333","https://openalex.org/W2018307445","https://openalex.org/W2019923078","https://openalex.org/W2020641372","https://openalex.org/W2030545388","https://openalex.org/W2032232397","https://openalex.org/W2044243926","https://openalex.org/W2046054389","https://openalex.org/W2046376265","https://openalex.org/W2060064587","https://openalex.org/W2062261415","https://openalex.org/W2062773531","https://openalex.org/W2064683427","https://openalex.org/W2070972970","https://openalex.org/W2074901720","https://openalex.org/W2076057813","https://openalex.org/W2082298520","https://openalex.org/W2084962862","https://openalex.org/W2088434040","https://openalex.org/W2093441000","https://openalex.org/W2102582319","https://openalex.org/W2135900697","https://openalex.org/W2155890498","https://openalex.org/W2162427990","https://openalex.org/W2168157119","https://openalex.org/W2208316638","https://openalex.org/W2322997139","https://openalex.org/W2412232071","https://openalex.org/W2735482738","https://openalex.org/W3087466986"],"related_works":["https://openalex.org/W2751043137","https://openalex.org/W2378101299","https://openalex.org/W2071657621","https://openalex.org/W1781298275","https://openalex.org/W1506812257","https://openalex.org/W1597100443","https://openalex.org/W2735044665","https://openalex.org/W2126006568","https://openalex.org/W1512041247","https://openalex.org/W1989023184"],"abstract_inverted_index":{"1.":[0],"Several":[1],"low\u2010potential":[2],"electron":[3,107,247,287],"carriers":[4,16,97],"from":[5,26,32,59,74,88,102,260],"different":[6,48],"sources":[7],"can":[8,220],"be":[9,221],"photoreduced":[10,96],"by":[11,125,224],"the":[12,30,51,60,75,89,166,173,176,191,199,226,230,252,272,284],"system":[13],"3,10\u2010dimethyl\u20105\u2010deazaisoalloxazine/N\u2010tris(hydroxymethyl)methylglycine.":[14],"The":[15,113,215,262],"studied":[17],"were":[18],"flavodoxin,":[19],"ferredoxin":[20],"I":[21],"and":[22,29,35,63,78,153,205,242],"iron\u2010sulfur":[23,84],"protein":[24,85,168,195],"II":[25,86,169],"Azotobacter":[27],"vinelandii":[28,43,104,122,236],"flavodoxins":[31],"Desulfovibrio":[33],"vulgaris":[34],"Peptostreptococcus":[36],"elsdenii.":[37],"2.":[38],"Electron":[39],"transport":[40,108],"to":[41,109,209,267,289],"A.":[42,103,121,235],"nitrogenase":[44,130],"was":[45,163],"studied,":[46],"employing":[47],"preparations":[49],"of":[50,116,118,120,128,149,193,198,229,251,264,286],"enzyme:":[52],"a":[53,56,71,141,147,154,187,212],"crude":[54,129],"complex;":[55],"complex":[57,72,131],"reconstituted":[58,73],"0.27":[61,76],"M":[62,65,77,80,91],"0.38":[64,79],"NaCl":[66,81,92],"fractions":[67],"after":[68],"DEAE\u2010cellulose":[69],"chromatography;":[70],"fraction":[82],"plus":[83],"purified":[87],"0.15":[90],"fraction.":[93],"Of":[94],"all":[95],"tested,":[98],"only":[99],"flavodoxin":[100,123,231,237,265],"hydroquinone":[101,124,241,266],"catalyzes":[105],"significant":[106],"these":[110],"complexes.":[111],"3.":[112],"time":[114],"course":[115],"oxidation":[117],"substrate\u2010amounts":[119],"catalytic":[126],"amounts":[127],"shows":[132],"three":[133],"characteristic":[134],"phases:":[135],"an":[136],"initial":[137],"lag":[138,174],"phase":[139,142,156,179,183,203,207,218],"(1),":[140],"with":[143,157],"constant":[144],"rate":[145,160,216,270],"over":[146],"range":[148],"redox":[150],"potentials":[151],"(2)":[152],"final":[155],"rapidly":[158],"declining":[159],"(3).":[161],"It":[162],"shown":[164],"that":[165],"Fe\u2010S":[167,194],"is":[170,185,255,276,281],"responsible":[171],"for":[172,283],"phase;":[175],"potential":[177],"where":[178],"2":[180,208,219],"changes":[181],"into":[182],"3":[184],"at":[186,211],"higher":[188,213],"value":[189],"in":[190,217,257,271],"presence":[192],"II.":[196],"Pre\u2010reduction":[197],"enzyme":[200],"photochemically":[201],"abolishes":[202],"1":[204],"causes":[206],"proceed":[210],"rate.":[214],"enhanced":[222],"also":[223],"lowering":[225],"\u2018starting":[227],"potential\u2019":[228],"hydroquinone/semiquinone":[232],"couple.":[233],"4.":[234],"shuttles":[238],"between":[239],"its":[240],"semiquinone":[243],"forms":[244],"during":[245],"steady\u2010state":[246],"transfer.":[248],"Over":[249],"90%":[250],"reducing":[253],"equivalents":[254],"recovered":[256],"ethylene":[258],"formed":[259],"acetylene.":[261],"concentrations":[263],"give":[268],"half\u2010maximum":[269],"acetylene":[273],"reduction":[274],"assay":[275],"3\u20136":[277],"\u03bcM.":[278],"A":[279],"scheme":[280],"proposed":[282],"regulation":[285],"donation":[288],"nitrogenase.":[290]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}