Results 41 to 50 of about 7,342 (228)

S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea

The FEBS Journal, EarlyView.
S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels, Michael K. F. Mohr, Phillip Nußbaum, Marie Joest, Bianca Wassmer, Laurent Rasquin, Sonja‐Verena Albers, Jennifer N. Andexer   +7 more
wiley   +1 more source

Influence of Growth Phase, pH, and Temperature on the Abundance and Composition of Tetraether Lipids in the Thermoacidophile Picrophilus torridus

Frontiers in Microbiology, 2016
The abundance and composition of glycerol dibiphytanyl glycerol tetraether (GDGT) and glycerol tribiphytanyl glycerol tetraether (GTGT) lipids were determined as a function of growth phase as a proxy for nutrient availability, the pH of growth medium ...
Jayme Feyhl-Buska, Yufei Chen, Chengling Jia, Jinxiang Wang, Chuanlun Zhang, Eric Boyd   +5 more
doaj   +1 more source

Fervidobacterium pennivorans subsp. keratinolyticus subsp. nov., a Novel Feather-Degrading Anaerobic Thermophile

Microorganisms, 2022
Fervidobacterium pennivorans subsp. keratinolyticus subsp. nov. strain T was isolated from a terrestrial, high-altitude hot spring in Tajikistan. This strain is an obligate anaerobic rod and their cells occur singly, in pairs, or as short chains under ...
Rubén Javier-Lopez, Edoardo Mandolini, Munavvara Dzhuraeva, Khursheda Bobodzhanova, Nils-Kåre Birkeland   +4 more
doaj   +1 more source

Bioconversion of ferulic acid into vanillic acid by the thermophilic fungus Sporotrichum thermophile

, 2003
Sporotrichum thermophile is capable of promoting the formation of vanillic acid during ferulic acid degradation. Ferulic acid metabolism by S. thermophile apparently occurred via the propenoic chain degradation and the formation of 4-hydroxy-3 ...
Topakas, E., Kalogeris, E, E. Kalogeris, Kalogeris, E., Kekos, D., Macris, B.J., D. Kekos, B.J. Macris, Topakas, E, Macris, B.J.,, Topakas, E.,, P. Christakopoulos, Kekos, D, E. Topakas, Christakopoulos, P, Christakopoulos, Paul, Kekos, D.,, Macris, BJ, Kalogeris, E.,   +18 more
core   +1 more source

Efficient hydrogen production from the lignocellulosic energy crop Miscanthus by the extreme thermophilic bacteria Caldicellulosiruptor saccharolyticus and Thermotoga neapolitana [PDF]

, 2009
Background The production of hydrogen from biomass by fermentation is one of the routes that can contribute to a future sustainable hydrogen economy. Lignocellulosic biomass is an attractive feedstock because of its abundance, low production costs and ...
Lai Man H, Claassen Pieternel AM, Lai, M.H., Bakker, R.R., Mars Astrid E, de Vrije, G.J., Bakker Robert R, Claassen, P.A.M., Budde, M.A.W., Mars, A.E., de Vrije Truus, Budde Miriam AW, Vrije, G.J., de   +12 more
core   +1 more source

Structure–activity relationship study shows versatility in substrate specificity for heterodisulfide reductase in methanogenic archaea

Protein Science, Volume 35, Issue 7, July 2026.
Abstract Hydrogenotrophic methanogens are anaerobic archaea that convert carbon dioxide and hydrogen into methane. Central to this process is the heterodisulfide reductase (Hdr), which catalyzes the reduction of the heterodisulfide made of coenzyme M and coenzyme B. In vivo, Hdr functions in association with electron‐donating modules such as the [NiFe]‐
Mahdi Faal Maleki, Joakim Bøgelund Jakobsen, Eva Danielle Schuiten, Tristan Wagner, André Luis Alves Neves, Lennart Bunch   +5 more
wiley   +1 more source

Chemical shift assignment of a thermophile frataxin [PDF]

, 2017
Frataxin is the protein responsible for the genetically-inherited neurodegenerative disease Friedreich’s ataxia caused by partial silencing of the protein and loss of function.
Geoff Kelly, Pastore, Annalisa; id_orcid, Masooma Rasheed, Pastore A, Kelly G, Kelly, Geoff, Yan R, Annalisa Pastore, Yan, Robert, Robert Yan, Rasheed M, Rasheed, Masooma   +11 more
core   +1 more source

Acetogenic Methane‐Carbon Monoxide Comproportionation: An Exergonic but Unobserved Microbial Metabolism

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Microbial metabolism relies on redox reactions that exploit chemical disequilibria. While aerobic carbon oxidation, carbon fixation, and fermentation are well studied, the broader space of anaerobic carbon redox reactions remains underexplored.
Heidi S. Aronson, William D. Leavitt, Douglas E. LaRowe   +2 more
wiley   +1 more source

Biochemical and structural properties of a thermostable mercuric ion reductase from Metallosphaera sedula

Frontiers in Bioengineering and Biotechnology, 2015
Mercuric ion reductase (MerA), a mercury detoxification enzyme, has been tuned by evolution to have high specificity for mercuric ions (Hg2+) and to catalyze their reduction to a more volatile, less toxic elemental form.
Jacob Hansen Artz, Spencer Nathaniel White, Oleg eZadvornyy, Corey James Fugate, Danny eHicks, George eGauss, Matthew ePosewitz, Eric eBoyd, John W. Peters   +8 more
doaj   +1 more source

Evaluation of Heterologous Biosynthetic Pathways for Methanol-Based 5-Aminovalerate Production by Thermophilic Bacillus methanolicus

Frontiers in Bioengineering and Biotechnology, 2021
The use of methanol as carbon source for biotechnological processes has recently attracted great interest due to its relatively low price, high abundance, high purity, and the fact that it is a non-food raw material.
Luciana Fernandes Brito, Marta Irla, Ingemar Nærdal, Simone Balzer Le, Baudoin Delépine, Stéphanie Heux, Trygve Brautaset   +6 more
doaj   +1 more source