Results 71 to 80 of about 3,564 (181)

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

, 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
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Methanol and Carbon Monoxide Metabolism of the Thermophile Moorella caeni

Environmental Microbiology, Volume 27, Issue 4, April 2025.
An omics approach was used to elucidate the C1 metabolism of Moorella caeni DSM 21394 T, which exhibits acetogenic metabolism on methanol and hydrogenogenic metabolism on CO. Our results suggest that respiratory Complex I serves as the primary respiratory enzyme in methanol‐grown cells.
Nicolas A. Vecchini Santaella, Alfons J. M. Stams, Diana Z. Sousa   +2 more
wiley   +1 more source

Food-Like Growth Conditions Support Production of Active Vitamin B12 by Propionibacterium freudenreichii 2067 without DMBI, the Lower Ligand Base,or Cobalt Supplementation [PDF]

, 2017
Propionibacterium freudenreichii is a traditional dairy bacterium and a producer of short chain fatty acids (propionic and acetic acids) as well as vitamin B12.
Chamlagain, Bhawani, Deptula, Paulina, Edelmann, Minnamari, Nyman, Tuula A., Piironen, Vieno, Sangsuwan, Panchanit, Savijoki, Kirsi, Varmanen, Pekka   +7 more
core   +1 more source

Metagenomic Exploration Uncovers Several Novel ‘Candidatus’ Species Involved in Acetate Metabolism in High‐Ammonia Thermophilic Biogas Processes

Microbial Biotechnology, Volume 18, Issue 3, March 2025.
Metagenomic analysis of three thermophilic species was performed to identify key species for stable biogas production at high free ammonia levels (> 0.7 g/L). Potential acetogens and syntrophic acetate‐oxidising bacteria (SAOB) were recovered by looking for genes of the Wood–Ljungdahl pathway and glycine synthase reductase pathway.
George B. Cheng, Erik Bongcam‐Rudloff, Anna Schnürer   +2 more
wiley   +1 more source

Trace elements induce predominance among methanogenic activity in anaerobic digestion

Frontiers in Microbiology, 2016
Trace elements play an essential role in all organisms due to their functions in enzyme complexes. In anaerobic digesters, control and supplementation of trace elements lead to stable and more efficient methane production processes while trace element ...
Babett Wintsche, Karin Glaser, Heike Sträuber, Florian Centler, Jan Liebetrau, Hauke Harms, Sabine Kleinsteuber   +6 more
doaj   +1 more source

Reductive dechlorination in the energy metabolism of anaerobic bacteria [PDF]

, 2017
Within the last few decades, several anaerobic bacteria have been isolated which are able to reductively dechlorinate chlorinated aliphatic and aromatic compounds at catabolic rates.
Diekert, Gabriele, Holliger, Christof, Wohlfarth, Gert   +2 more
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Redox, haem and CO in enzymatic catalysis and regulation [PDF]

, 2012
The present paper describes general principles of redox catalysis and redox regulation in two diverse systems. The first is microbial metabolism of CO by the Wood–Ljungdahl pathway, which involves the conversion of CO or H2/CO2 into acetyl-CoA, which ...
Bender, Güneş, Bianchetti, Christopher M., Britt, R. David, Cramer, Stephen P., Doukov, Tzanko I., Drennan, Catherine L., George, Simon J., Gupta, Nirupama, Jakob, Ursula, Jenkins, Paul M., Kung, Yan, Leichert, Lars, Martens, Jeffrey R., Phillips, George N., Ragsdale, Stephen W., Stich, Troy A., Yan, Lifen, Yi, Li   +17 more
core   +1 more source

Vitamin B12: prevention of human beings from lethal diseases and its food application

Journal of the Science of Food and Agriculture, Volume 105, Issue 1, Page 10-18, 15 January 2025.
Abstract Vitamin B12, a water‐soluble essential micronutrient, plays a pivotal role in numerous physiological processes in the human body. This review meticulously examines the structural complexity and the diverse mechanisms through which vitamin B12 exerts its preventive effects against a spectrum of health conditions, including pernicious anaemia ...
S Harikrishnan, Deepika Kaushik, Mukul Kumar, Jasjit Kaur, Emel Oz, Charalampos Proestos, Tahra Elobeid, Omur Fatih Karakullukcu, Fatih Oz   +8 more
wiley   +1 more source

Genomic determinants of organohalide-respiration in Geobacter lovleyi, an unusual member of the Geobacteraceae

BMC Genomics, 2012
Background Geobacter lovleyi is a unique member of the Geobacteraceae because strains of this species share the ability to couple tetrachloroethene (PCE) reductive dechlorination to cis-1,2-dichloroethene (cis-DCE) with energy conservation and growth (i ...
Wagner Darlene D, Hug Laura A, Hatt Janet K, Spitzmiller Melissa R, Padilla-Crespo Elizabeth, Ritalahti Kirsti M, Edwards Elizabeth A, Konstantinidis Konstantinos T, Löffler Frank E   +8 more
doaj   +1 more source

Syntheses and characterization of vitamin B12-Pt(II) conjugates and their adenosylation in an enzymatic assay [PDF]

, 2018
Aiming at the use of vitamin B12 as a drug delivery carrier for cytotoxic agents, we have reacted vitaminB12 with trans-[PtCl(NH3)2(H2O)]+, [PtCl3(NH3)]− and [PtCl4]2−. These Pt(II) precursors coordinated directly to the Co(III)-bound cyanide, giving the
Alberto, Roger, Buan, Nicole, Escalante-Semerena, Jorge, Mundwiler, Stefan, Ruiz-Sánchez, Pilar, Spingler, Bernhard   +5 more
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