Results 91 to 100 of about 10,170 (250)

Characterization and purification of carbon monoxide dehydrogenase from Methanosarcina barkeri [PDF]

open access: yesJournal of Bacteriology, 1984
Carbon monoxide-dependent production of H2, CO2, and CH4 was detected in crude cell extracts of acetate-grown Methanosarcina barkeri. This metabolic transformation was associated with an active methyl viologen-linked CO dehydrogenase activity (5 to 10 U/mg of protein).
J A, Krzycki, J G, Zeikus
openaire   +2 more sources

Rumen microbial degradation of bromoform from red seaweed (Asparagopsis taxiformis) and the impact on rumen fermentation and methanogenic archaea

open access: yesJournal of Animal Science and Biotechnology, 2023
Background The red macroalgae Asparagopsis is an effective methanogenesis inhibitor due to the presence of halogenated methane (CH4) analogues, primarily bromoform (CHBr3).
Pedro Romero   +7 more
doaj   +1 more source

Regulatory responses of Methanosarcina barkeri to freezing temperatures and perchlorates: Transcriptomic insights into the potential for biological Martian methanogenesis

open access: yes, 2021
Observations of trace methane (CH4) in the Martian atmosphere are significant to the astrobiology community given the overwhelming contribution of biological methanogenesis to atmospheric CH4­ on Earth.
R. Harris   +5 more
semanticscholar   +1 more source

Site directed mutagenesis of L-pyrrolysine in dimethylamine methyltransferase [PDF]

open access: yes, 2009
Methanosarcina barkeri is an archaeon and is able to use methylamines as growth substrates for methanogenesis. The methylamine methyltransferases that are involved in initiating methanogenesis from the methylamines have an in-frame amber codon (UAG) that
Patel, Jigar
core  

Kristallstrukturen von F420-abhängiger Alkohol-Dehydrogenase (Adf) und F420-abhängiger Methylentetrahydromethanopterin-Reduktase (Mer) [PDF]

open access: yes, 2004
Coenzym F420 ist ein 5Ž-Deazaflavin-Derivat, das in methanogenen Archaea in hohen Konzentrationen vorkommt und für die gelb-grüne Fluoreszenz dieser Organismen verantwortlich ist.
Aufhammer, Stephan, Walter   +1 more
core   +1 more source

Genetic code expansion and enzymatic modifications as accessible methods for studying site‐specific post‐translational modifications of alpha‐synuclein and tau

open access: yesProtein Science, Volume 34, Issue 10, October 2025.
Abstract Alpha‐synuclein (αS) and tau play important roles in the pathology of Parkinson's disease and Alzheimer's disease, respectively, as well as numerous other neurodegenerative diseases. Both proteins are classified as intrinsically disordered proteins (IDPs), as they have no stable structure that underlies their function in healthy tissue, and ...
Ibrahim G. Saleh   +17 more
wiley   +1 more source

Generation of a transmembrane gradient of Na+ in Methanosarcina barkeri [PDF]

open access: yesEuropean Journal of Biochemistry, 1987
A transmembrane Na+ gradient was generated by Methanosarcina barkeri during methanogenesis. The intracellular Na+ concentration amounted to approximately one fifth of the extracellular one. A secondary Na+/H+ antiport system was shown to be responsible for Na+ extrusion. This system could be inhibited by amiloride.
V, Müller, M, Blaut, G, Gottschalk
openaire   +2 more sources

Microbiome signature and diversity regulates the level of energy production under anaerobic condition

open access: yesScientific Reports, 2021
The microbiome of the anaerobic digester (AD) regulates the level of energy production. To assess the microbiome diversity and composition in different stages of anaerobic digestion, we collected 16 samples from the AD of cow dung (CD) origin.
M. Shaminur Rahman   +7 more
doaj   +1 more source

Microbial demethylation of dimethylsulfoniopropionate and methylthiopropionate [PDF]

open access: yes, 2000
As discussed in chapter 1 , there is an increased interest in the production of certain natural sulfur-containing flavor compounds or flavor precursors.
Jansen, Michael,
core   +3 more sources

Archaeal protein containing domain of unknown function 2193 undergoes oligomeric reconfiguration upon iron–sulfur cluster binding

open access: yesFEBS Letters, Volume 599, Issue 16, Page 2318-2333, August 2025.
This work presents the characterization of MvoDUF2193, a Methanococcus voltae (Mvo) protein from the domain of unknown function (DUF) 2193 family. We demonstrate that MvoDUF2193 binds a single [4Fe–4S] cluster per subunit and that cluster occupancy regulates the transition from an apo tetramer to a [4Fe–4S] monomeric form. This structural transition is
Emily M. Dieter   +8 more
wiley   +1 more source

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