Results 31 to 40 of about 5,158 (166)

Salt Tolerance of Archaeal Extremely Halophilic Lipid Membranes [PDF]

Journal of Biological Chemistry, 2006
The membranes of extremely halophilic Archaea are characterized by the abundance of a diacidic phospholipid, archaetidylglycerol methylphosphate (PGP-Me), which accounts for 50-80 mol% of the polar lipids, and by the absence of phospholipids with choline, ethanolamine, inositol, and serine head groups.
John C. Mathai, Boris Tenchov, Erin M. Vescio, G. Dennis Sprott, Mark L. Zeidel   +4 more
openaire   +3 more sources

Structural Characterization of an Archaeal Lipid Bilayer as a Function of Hydration and Temperature [PDF]

International Journal of Molecular Sciences, 2020
Archaea, the most extremophilic domain of life, contain ether and branched lipids which provide extraordinary bilayer properties. We determined the structural characteristics of diether archaeal-like phospholipids as functions of hydration and temperature by neutron diffraction.
Marta Salvador-Castell, Bruno Demé, Philippe Oger, Judith Peters   +3 more
openaire   +4 more sources

Marine Group II Euryarchaeota Contribute to the Archaeal Lipid Pool in Northwestern Pacific Ocean Surface Waters

Frontiers in Microbiology, 2020
Planktonic archaea include predominantly Marine Group I Thaumarchaeota (MG I) and Marine Group II Euryarchaeota (MG II), which play important roles in the oceanic carbon cycle. MG I produce specific lipids called isoprenoid glycerol dibiphytanyl glycerol
Cenling Ma, Sarah Coffinet, Julius S. Lipp, Kai-Uwe Hinrichs, Chuanlun Zhang, Chuanlun Zhang   +5 more
doaj   +1 more source

The Exploration of the Thermococcus barophilus Lipidome Reveals the Widest Variety of Phosphoglycolipids in Thermococcales

Frontiers in Microbiology, 2022
One of the most distinctive characteristics of archaea is their unique lipids. While the general nature of archaeal lipids has been linked to their tolerance to extreme conditions, little is known about the diversity of lipidic structures archaea are ...
Maxime Tourte, Maxime Tourte, Sarah Coffinet, Lars Wörmer, Julius S. Lipp, Kai-Uwe Hinrichs, Philippe M. Oger   +6 more
doaj   +1 more source

Thermal Adaptation of the Archaeal and Bacterial Lipid Membranes [PDF]

Archaea, 2012
The physiological characteristics that distinguish archaeal and bacterial lipids, as well as those that define thermophilic lipids, are discussed from three points of view that (1) the role of the chemical stability of lipids in the heat tolerance of thermophilic organisms: (2) the relevance of the increase in the proportion of certain lipids as the ...
openaire   +2 more sources

Crystal structure of Escherichia coli-expressed Haloarcula marismortui bacteriorhodopsin I in the trimeric form. [PDF]

PLoS ONE, 2014
Bacteriorhodopsins are a large family of seven-helical transmembrane proteins that function as light-driven proton pumps. Here, we present the crystal structure of a new member of the family, Haloarcula marismortui bacteriorhodopsin I (HmBRI) D94N mutant,
Vitaly Shevchenko, Ivan Gushchin, Vitaly Polovinkin, Ekaterina Round, Valentin Borshchevskiy, Petr Utrobin, Alexander Popov, Taras Balandin, Georg Büldt, Valentin Gordeliy   +9 more
doaj   +1 more source

Nitrosopumilus as main source of isoprenoid glycerol dialkyl glycerol tetraether lipids in the central Baltic Sea

Frontiers in Microbiology, 2023
Nitrososphaeria in the phylum Crenarchaeota, is a widespread archaeal class in the oceanic realm, playing an important role in the marine carbon and nitrogen cycle.
Anna Katharina Wittenborn, Thorsten Bauersachs, Christiane Hassenrück, Katja Käding, Janine Wäge-Recchioni, Klaus Jürgens, Helge Wolfgang Arz, Jérôme Kaiser   +7 more
doaj   +1 more source

Apolar Polyisoprenoids Located in the Midplane of the Bilayer Regulate the Response of an Archaeal-Like Membrane to High Temperature and Pressure

Frontiers in Chemistry, 2020
Archaea are known to inhabit some of the most extreme environments on Earth. The ability of archaea possessing membrane bilayers to adapt to high temperature (>85°C) and high pressure (>1,000 bar) environments is proposed to be due to the presence ...
Josephine G. LoRicco, Marta Salvador-Castell, Bruno Demé, Judith Peters, Judith Peters, Philippe M. Oger   +5 more
doaj   +1 more source

Systematic comparison of unilamellar vesicles reveals that archaeal core lipid membranes are more permeable than bacterial membranes.

PLoS Biology, 2023
One of the deepest branches in the tree of life separates the Archaea from the Bacteria. These prokaryotic groups have distinct cellular systems including fundamentally different phospholipid membrane bilayers.
Urszula Łapińska, Georgina Glover, Zehra Kahveci, Nicholas A T Irwin, David S Milner, Maxime Tourte, Sonja-Verena Albers, Alyson E Santoro, Thomas A Richards, Stefano Pagliara   +9 more
doaj   +1 more source

Archaeosomes and Gas Vesicles as Tools for Vaccine Development

Frontiers in Immunology, 2021
Archaea are prokaryotic organisms that were classified as a new domain in 1990. Archaeal cellular components and metabolites have found various applications in the pharmaceutical industry.
Natalia Adamiak, Krzysztof T. Krawczyk, Camille Locht, Camille Locht, Magdalena Kowalewicz-Kulbat   +4 more
doaj   +1 more source