title: Bacterial triterpenoids of the hopane series from the prochlorophyte Prochlorothrix hollandica and their intracellular localization.
abstract: 35-O-beta-Galacturonopyranosyl-, 35-O-beta-3,5-anhydro-galacturonopyranosyl- and 35-O-alpha-altruronopyranosylbacteriohopanetetrol accompanied by their 2 beta-methyl homologues have been isolated from Prochlorothrix hollandica. We report here C35 triterpenoids of the hopane series in a prochlorophyte, a group of prokaryotic oxigenic phototrophs of the cyanobacterial lineage. Like many cyanobacteria, P. hollandica contains a mixture of non-methylated as well as 2 beta-methylhopanoids. After side-chain cleavage by periodic acid oxidation followed by sodium borohydride reduction, these hopanoids could be localized in cell walls and thylakoids, in accordance with their role as membrane stabilizers.
authors.affiliation: Ecole Nationale Supérieure de Chimie de Mulhouse/CNRS, Mulhouse, France.
authors.forename: P
authors.initials: P
authors.lastname: Simonin
authors.forename: U J
authors.initials: UJ
authors.lastname: Jürgens
authors.forename: M
authors.initials: M
authors.lastname: Rohmer
mesh_terms: D002451:Cell Compartmentation; D002473:Cell Wall / Q000737:chemistry; D000458:Cyanobacteria / Q000737:chemistry*; D005697:Galactosides / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry*; D007425:Intracellular Membranes / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D013347:Subcellular Fractions; D014315:Triterpenes / Q000737:chemistry*; D014574:Uronic Acids / Q000737:chemistry
chemical_list: D005697:Galactosides; D006027:Glycosides; D014315:Triterpenes; D014574:Uronic Acids; C054760:32,33,34,35-bacteriohopanetetrol; C102528:altruronic acid