title: Long-chain alpha-hydroxy-(omega-1)-oxo fatty acids and alpha-hydroxy-1,omega-dioic fatty acids are cell wall constituents of Legionella (L. jordanis, L. maceachernii and L. micdadei).
abstract: Four long-chain fatty acids, 2-hydroxy-27-oxo-octacosanoic acid (n28:0(2-OH,27-oxo)), 2-hydroxy-29-oxo-triacontanoic acid (n30:0(2-OH,29-oxo)), 2-hydroxy-heptacosane-1,27-dioic acid (27:0(2-OH)-dioic) and 2-hydroxy-nonacosane-1,29-dioic acid (29:0(2-OH)-dioic) were identified by GLC-MS analysis in the phenol-chloroform-petroleum ether (PCP) extracts of Legionella jordanis, L. maceachernii and L. micdadei indicating that they are constituents of lipopolysaccharide. Moreover, five long-chain fatty acids (28:0(27-OH), 28:0(27-oxo), 30:0(29-oxo), 27:0-dioic and 29:0-dioic) previously identified in L. pneumophila (Moll, H. et al., FEMS Microbiol. Lett., 97 (1992), 1-6) were also found in these species. This is to our knowledge the first report on the existence of long chain 2-hydroxylated (omega-1)-oxo fatty acids and 2-hydroxylated 1,omega-dioic fatty acids.
authors.affiliation: Forschungsinstitut Borstel, Institut für Experimentelle Biologie und Medizin, FRG.
authors.forename: A
authors.initials: A
authors.lastname: Sonesson
authors.forename: H
authors.initials: H
authors.lastname: Moll
authors.forename: E
authors.initials: E
authors.lastname: Jantzen
authors.forename: U
authors.initials: U
authors.lastname: Zähringer
mesh_terms: D002473:Cell Wall / Q000737:chemistry; D005227:Fatty Acids / Q000737:chemistry / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry; D007875:Legionella / Q000737:chemistry*; D015394:Molecular Structure; D008970:Molecular Weight; D013045:Species Specificity
chemical_list: D005227:Fatty Acids