Results 221 to 230 of about 1,034,422 (264)
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2000
Gallia omnia divisa est in partes tres (all gallia are divided into three parts) was written almost 2000 years ago by the Roman Caesar about a part of the world that has since become better known as France. Likewise, in 1978, Woese and his coworkers divided the whole formerly dualistic world of prokaryotic and eukaryotic cells into three parts ...
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Gallia omnia divisa est in partes tres (all gallia are divided into three parts) was written almost 2000 years ago by the Roman Caesar about a part of the world that has since become better known as France. Likewise, in 1978, Woese and his coworkers divided the whole formerly dualistic world of prokaryotic and eukaryotic cells into three parts ...
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Tetraether lipid components from a thermoacidophilic archaebacterium
Journal of Molecular Biology, 1988As a continuation of an X-ray scattering study of the tetraether lipids extracted from the thermophilic archaebacterium Sulfolobus solfataricus, the phase behaviour of four fractions of the complex polar lipid extract (PLE) is described. Each molecule of two of these fractions (P1 and GL) carries an unsubstituted glycerol headgroup, those of another ...
Gulik A +3 more
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Archives of Biochemistry and Biophysics, 1991
The main glycophospholipid from Thermoplasma acidophilum is composed of a diisopranol-2,3-glycerotetraether. The fraction of pentane cyclizations of its hydrocarbon chains increases with the growth temperature of the source organism (39-59 degrees C). Hydrated mixtures of these lipids together with cholesterol have been studied by calorimetry. With the
Hans-Joachim Freisleben +2 more
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The main glycophospholipid from Thermoplasma acidophilum is composed of a diisopranol-2,3-glycerotetraether. The fraction of pentane cyclizations of its hydrocarbon chains increases with the growth temperature of the source organism (39-59 degrees C). Hydrated mixtures of these lipids together with cholesterol have been studied by calorimetry. With the
Hans-Joachim Freisleben +2 more
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Structure and polymorphism of tetraether lipids from Sulfolobus solfataricus
Systematic and Applied Microbiology, 1986Summary We discuss in this paper some of the possible biological implications of the structural properties of S. solfataricus lipids, with special consideration of those properties not shared by other lipids from eukaryotes and eubacteria. Five points are taken into consideration, a) The influence of the unsubstituted glycerol headgroups, which are
Vittorio Luzzati, Annette Gulik
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Bulletin of the Chemical Society of Japan, 1997
Abstract Archaeal 72-membered macrocyclic tetraether model compounds (5 and 6) were synthesized by intramolecular dicarbonyl coupling with the aid of low-valent titanium, which is known as McMurry coupling. This synthetic methodology is the first practical way to obtain the two regioisomeric structures in quantity and appears to be ...
Tadashi EGUCHI +3 more
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Abstract Archaeal 72-membered macrocyclic tetraether model compounds (5 and 6) were synthesized by intramolecular dicarbonyl coupling with the aid of low-valent titanium, which is known as McMurry coupling. This synthetic methodology is the first practical way to obtain the two regioisomeric structures in quantity and appears to be ...
Tadashi EGUCHI +3 more
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ChemInform Abstract: Total Synthesis of Archaeal 72‐Membered Macrocyclic Tetraether Lipids.
ChemInform, 1998AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. Eguchi, K. Ibaragi, K. Kakinuma
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Identification and distribution of intact polar branched tetraether lipids in peat and soil
Organic Geochemistry, 2011Branched glycerol dialkyl glycerol tetraether lipids (GDGTs) are membrane lipids of soil bacteria that occur ubiquitously in soil, but their occurrence as intact polar lipids (IPLs) has not been well studied. Here, we report the identification and distribution of IPL-branched GDGTs throughout a depth profile of a Swedish peat bog.
Francien Peterse +5 more
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Archaebacterial bipolar tetraether lipids: Physico-chemical and membrane properties
Chemistry and Physics of Lipids, 2010Bipolar tetraether lipids (BTL) are abundant in archaea and can be chemically synthesized. The structures of BTL are distinctly different from the lipids found in bacteria and eukaryotes. In aqueous solution, BTL can form extraordinarily stable liposomes with different sizes, lamellarities and membrane packing densities.
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The Journal of Biochemistry, 1987
The structures of three of the major polar lipids (PNL1a, GL1a, and PNGL1) of Methanobacterium thermoautotrophicum were elucidated. These lipids are derivatives of dibiphytanyl diglycerol tetraether (C40 tetraether; the proposed name is caldarchaeol).
Hiroyuki Morii +2 more
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The structures of three of the major polar lipids (PNL1a, GL1a, and PNGL1) of Methanobacterium thermoautotrophicum were elucidated. These lipids are derivatives of dibiphytanyl diglycerol tetraether (C40 tetraether; the proposed name is caldarchaeol).
Hiroyuki Morii +2 more
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Structure and permeability properties of biomimetic membranes of bolaform archaeal tetraether lipids
Journal of Membrane Science, 2002This review is a general survey of the properties of membranes formed by tetraether lipids extracted from microorganisms living in extreme conditions, named Archaea. After describing the unusual structure and physico-chemical properties of the membrane-spanning lipids, which allow Archaea to maintain membrane integrity in harsh environments, we ...
GLIOZZI, ALESSANDRA +2 more
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