{"refrec":{"BRefID":332651,"RR":"<b>Bale, N.J.; Koenen, M.; Yadav, S.; Hopmans, E.C.; Villanueva, L.; Sinninghe Damsté, J.S.; Schouten, S.</b> (2020). Diagnostic amide products of amino lipids detected in the microaerophilic bacteria <i>Lutibacter</i> during routine fatty acid analysis using gas chromatography. <i>Org. Geochem. 144</i>: 104027. <a href=\"https://doi.org/10.1016/j.orggeochem.2020.104027\" target=\"_blank\">https://doi.org/10.1016/j.orggeochem.2020.104027</a>","BEntID":326263,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Org. Geochem. 144</i>: 104027. <a href=\"https://doi.org/10.1016/j.orggeochem.2020.104027\" target=\"_blank\">https://doi.org/10.1016/j.orggeochem.2020.104027</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bale, N.J.; Koenen, M.; Yadav, S.; Hopmans, E.C.; Villanueva, L.; Sinninghe Damsté, J.S.; Schouten, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bale, N.J. <i>et al.</i>","Englishabstract":"<p>    Analysis of fatty acids in the form of fatty acid methyl esters (FAMEs)    using gas chromatography (GC) is routine within microbiology but still some    compounds remain unidentified. During characterization of the FAMEs of two    strains of the microaerophilic bacterium <em>Lutibacter</em> sp., recently    isolated from the Black Sea, a series of compounds, eluting after the    regular FAMEs, were detected. We identified these compounds using GC–mass    spectrometry (GC–MS) and an authentic standard, to be amino acids    glycine-linked via an amide bond to β-hydroxy fatty acids (i.e. glycineβ-hydroxy fatty acid amides). Analysis of the intact polar lipids of the    <em>Lutibacter</em> species by ultra-high performance liquid    chromatography–high resolution mass spectrometry (UHPLC–HRMS) showed that    the glycine β-hydroxy fatty acid amides are derived from glycine lipids    (also known as cytolipins), which are amino acid lipids. Amino acid lipids    represent an under-studied, but potentially significant, group of microbial    membrane lipids and our results provide a rapid way to detect the presence    of glycine lipids during routine fatty acid analysis by GC. Furthermore,    glycine β-hydroxy fatty acid amides represent easily detectable biomarker    lipids for glycine lipid-producing microorganisms in natural environments.</p>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Diagnostic amide products of amino lipids detected in the microaerophilic bacteria <i>Lutibacter</i> during routine fatty acid analysis using gas chromatography","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-11 01:32:43.384495","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Fatty acid methyl esters; <i>Lutibacter</i>; Black Sea; Gas chromatography; Glycine ß-hydroxy fatty acid amides; Glycine lipids; Cytolipins; Amino acid lipids","OtherDescriptors":null,"Notes":null,"AnaPub":2020,"MonPub":null,"DateUpdate":"2021-01-14","DateCreate":"2021-01-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000540059700002","VABBcode":null,"OpenAcc":1,"DOI":"10.1016/j.orggeochem.2020.104027"},"refs":null,"anarec":{"AnaID":332651,"PubliDate":2020,"Pagination":"104027","XtraPublOfAnaID":null,"ISBN":null,"Volume":"144","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":111331,"SerRR":"Organic Geochemistry. 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