{"id":"https://openalex.org/W2012793637","doi":"https://doi.org/10.1021/bi00754a010","title":"Nuclear magnetic resonance titration curves of histidine ring protons. II","display_name":"Nuclear magnetic resonance titration curves of histidine ring protons. II","publication_year":1972,"publication_date":"1972-02-15","ids":{"openalex":"https://openalex.org/W2012793637","doi":"https://doi.org/10.1021/bi00754a010","mag":"2012793637","pmid":"https://pubmed.ncbi.nlm.nih.gov/5011963"},"language":"en","primary_location":{"id":"doi:10.1021/bi00754a010","doi":"https://doi.org/10.1021/bi00754a010","is_oa":false,"landing_page_url":"https://doi.org/10.1021/bi00754a010","pdf_url":null,"source":{"id":"https://openalex.org/S104038378","display_name":"Biochemistry","issn_l":"0006-2960","issn":["0006-2960","1520-4995","1943-295X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Biochemistry","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5104046533","display_name":"Richard I. Shrager","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Richard I. Shrager","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112824755","display_name":"Jack S. Cohen","orcid":"https://orcid.org/0000-0002-8304-5006","observed_orcids":["https://orcid.org/0000-0002-8304-5006"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jack S. Cohen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085542188","display_name":"Stephen R. Heller","orcid":"https://orcid.org/0000-0002-5538-8482","observed_orcids":["https://orcid.org/0000-0002-5538-8482"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Stephen R. Heller","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073338357","display_name":"David H. Sachs","orcid":"https://orcid.org/0000-0001-9588-8580","observed_orcids":["https://orcid.org/0000-0001-9588-8580"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"David H. Sachs","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5047048178","display_name":"Alan N. Schechter","orcid":"https://orcid.org/0000-0002-6055-6452","observed_orcids":["https://orcid.org/0000-0002-6055-6452","https://orcid.org/0000-0002-5235-9408"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Alan N. Schechter","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4500,"currency":"USD","value_usd":4500},"apc_paid":null,"fwci":5.3251,"has_fulltext":false,"cited_by_count":120,"citation_normalized_percentile":{"value":0.96873191,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"11","issue":"4","first_page":"541","last_page":"547"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11809","display_name":"Advanced NMR Techniques and Applications","score":0.9878000020980835,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11809","display_name":"Advanced NMR Techniques and Applications","score":0.9878000020980835,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10044","display_name":"Protein Structure and Dynamics","score":0.0052999998442828655,"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/T12191","display_name":"Physical Organic Chemistry and Reaction Kinetics","score":0.0015999999595806003,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/histidine","display_name":"histidine","score":0.9900000095367432},{"id":"https://openalex.org/keywords/pka-determination","display_name":"pKa determination","score":0.4860000014305115},{"id":"https://openalex.org/keywords/amino-acid-ionization","display_name":"amino acid ionization","score":0.5540000200271606},{"id":"https://openalex.org/keywords/protonation-equilibria","display_name":"protonation equilibria","score":0.503000020980835}],"concepts":[{"id":"https://openalex.org/C2778460671","wikidata":"https://www.wikidata.org/wiki/Q485277","display_name":"Histidine","level":3,"score":0.7542529106140137},{"id":"https://openalex.org/C184866935","wikidata":"https://www.wikidata.org/wiki/Q191010","display_name":"Titration","level":2,"score":0.704870879650116},{"id":"https://openalex.org/C59244509","wikidata":"https://www.wikidata.org/wiki/Q3699705","display_name":"Titration curve","level":3,"score":0.7005767822265625},{"id":"https://openalex.org/C46141821","wikidata":"https://www.wikidata.org/wiki/Q209402","display_name":"Nuclear magnetic resonance","level":1,"score":0.6523685455322266},{"id":"https://openalex.org/C2780378348","wikidata":"https://www.wikidata.org/wiki/Q25351438","display_name":"Ring (chemistry)","level":2,"score":0.6194685697555542},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.5240947604179382},{"id":"https://openalex.org/C139210041","wikidata":"https://www.wikidata.org/wiki/Q2145840","display_name":"Resonance (particle physics)","level":2,"score":0.42529168725013733},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.23302969336509705},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.20601752400398254},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.15419942140579224},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.09564617276191711},{"id":"https://openalex.org/C181199279","wikidata":"https://www.wikidata.org/wiki/Q8047","display_name":"Enzyme","level":2,"score":0.0}],"mesh":[{"descriptor_ui":"D000085","descriptor_name":"Acetates","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000432","descriptor_name":"Methanol","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004151","descriptor_name":"Dipeptides","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006639","descriptor_name":"Histidine","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006863","descriptor_name":"Hydrogen-Ion Concentration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007093","descriptor_name":"Imidazoles","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008433","descriptor_name":"Mathematics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008956","descriptor_name":"Models, Chemical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009682","descriptor_name":"Magnetic Resonance Spectroscopy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1021/bi00754a010","doi":"https://doi.org/10.1021/bi00754a010","is_oa":false,"landing_page_url":"https://doi.org/10.1021/bi00754a010","pdf_url":null,"source":{"id":"https://openalex.org/S104038378","display_name":"Biochemistry","issn_l":"0006-2960","issn":["0006-2960","1520-4995","1943-295X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320006","host_organization_name":"American Chemical Society","host_organization_lineage":["https://openalex.org/P4310320006"],"host_organization_lineage_names":["American Chemical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Biochemistry","raw_type":"journal-article"},{"id":"pmid:5011963","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/5011963","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":"Biochemistry","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1534760323","https://openalex.org/W1538147524","https://openalex.org/W1548713531","https://openalex.org/W1985434402","https://openalex.org/W1990197576","https://openalex.org/W2004298238","https://openalex.org/W2015850960","https://openalex.org/W2023447868","https://openalex.org/W2024967729","https://openalex.org/W2055851798","https://openalex.org/W2062629860","https://openalex.org/W2091612484","https://openalex.org/W2323942512"],"related_works":["https://openalex.org/W1548713531","https://openalex.org/W1580340872","https://openalex.org/W1445718265","https://openalex.org/W1568129191","https://openalex.org/W2119916881","https://openalex.org/W1650247880","https://openalex.org/W1630293952","https://openalex.org/W2042053068","https://openalex.org/W2315687051","https://openalex.org/W1600125245"],"abstract_inverted_index":{"ADVERTISEMENT":[0],"RETURN":[1],"TO":[2],"ISSUEPREVArticleNEXTNuclear":[3],"magnetic":[4],"resonance":[5],"titration":[6],"curves":[7],"of":[8,59,94,120],"histidine":[9],"ring":[10],"protons.":[11],"IIRichard":[12],"I.":[13],"Shrager,":[14],"Jack":[15],"S.":[16],"Cohen,":[17],"Stephen":[18],"R.":[19],"Heller,":[20],"David":[21],"H.":[22],"Sachs,":[23],"and":[24,69,74,103,147,164,180,182],"Alan":[25],"N.":[26],"SchechterCite":[27],"this:":[28],"Biochemistry":[29],"1972,":[30],"11,":[31],"4,":[32],"541\u2013547Publication":[33],"Date":[34],"(Print):February":[35],"15,":[36],"1972Publication":[37],"History":[38],"Published":[39],"online1":[40],"May":[41],"2002Published":[42],"inissue":[43],"15":[44],"February":[45],"1972https://pubs.acs.org/doi/10.1021/bi00754a010https://doi.org/10.1021/bi00754a010research-articleACS":[46],"PublicationsRequest":[47],"reuse":[48],"permissionsArticle":[49],"Views227Altmetric-Citations92LEARN":[50],"ABOUT":[51],"THESE":[52],"METRICSArticle":[53],"Views":[54],"are":[55,78,91],"the":[56,87,92,121,132,145,148,153,160,166],"COUNTER-compliant":[57],"sum":[58],"full":[60],"text":[61],"article":[62,126],"downloads":[63],"since":[64],"November":[65],"2008":[66],"(both":[67],"PDF":[68],"HTML)":[70],"across":[71],"all":[72],"institutions":[73],"individuals.":[75],"These":[76],"metrics":[77],"regularly":[79],"updated":[80,104],"to":[81,86],"reflect":[82],"usage":[83],"leading":[84],"up":[85],"last":[88],"few":[89],"days.Citations":[90],"number":[93],"other":[95],"articles":[96],"citing":[97],"this":[98],"article,":[99],"calculated":[100],"by":[101],"Crossref":[102,110],"daily.":[105],"Find":[106,156],"more":[107,157],"information":[108,158],"about":[109,144],"citation":[111],"counts.The":[112],"Altmetric":[113,161],"Attention":[114,162],"Score":[115,163],"is":[116,168],"a":[117,124,137],"quantitative":[118],"measure":[119],"attention":[122],"that":[123],"research":[125],"has":[127],"received":[128],"online.":[129],"Clicking":[130],"on":[131,159],"donut":[133],"icon":[134],"will":[135],"load":[136],"page":[138],"at":[139],"altmetric.com":[140],"with":[141,176],"additional":[142],"details":[143],"score":[146,167],"social":[149],"media":[150],"presence":[151],"for":[152],"given":[154],"article.":[155],"how":[165],"calculated.":[169],"Share":[170,185],"Add":[171],"toView":[172],"InAdd":[173],"Full":[174],"Text":[175],"ReferenceAdd":[177],"Description":[178],"ExportRISCitationCitation":[179],"abstractCitation":[181],"referencesMore":[183],"Options":[184],"onFacebookTwitterWechatLinked":[186],"InRedditEmail":[187],"Other":[188],"access":[189],"optionsGet":[190],"e-Alertsclose":[191],"Get":[192],"e-Alerts":[193]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
