Results 51 to 60 of about 3,260 (236)

5'-Methylbenzimidazolyl-cobamides are the corrinoids from some sulfate-reducing and sulfur-metabolizing bacteria.

open access: yesEuropean Journal of Biochemistry, 1988
The sulfate-reducing bacteria Desulfobacterium autotrophicum, Desulfobulbus propionicus and Archaeoglobus fulgidus (VC-16) and the sulfur-metabolizing archaebacteria Desulfurolobus ambivalens and Thermoplasma acidophilum were found to contain ...
Bernhard Kräutler   +2 more
semanticscholar   +1 more source

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

open access: yesMicrobial 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   +2 more
wiley   +1 more source

Biochemical and mutational analysis of coenzyme B12 biosynthesis [PDF]

open access: yes, 2009
The B12 coenzymes are required cofactors for at least 15 different enzymes that are widely distributed in nature and are essential for human health.
Fan, Chenguang
core   +3 more sources

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

open access: yesJournal 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   +8 more
wiley   +1 more source

Wolffia globosa–Mankai Plant-Based Protein Contains Bioactive Vitamin B12 and Is Well Absorbed in Humans [PDF]

open access: yes, 2023
Background: Rare plants that contain corrinoid compounds mostly comprise cobalamin analogues, which may compete with cobalamin (vitamin B12 (B12)) metabolism.
Arinos, Shira   +16 more
core   +1 more source

Assignments in the carbon-13 nuclear magnetic resonance spectra of vitamin B12' coenzyme B12' and other corrinoids: application of partially-relaxed fourier transform spectroscopy.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1971
High-resolution Fourier transform NMR at 15.08 MHz was used to observe the proton-decoupled natural-abundance (13)C spectra of aqueous solutions of cobinamide dicyanide (0.067 M), cyanocobalamin (0.024 M), dicyanocobalamin (0.14 M), and coenzyme B(12) (0.
D. Doddrell, A. Allerhand
semanticscholar   +1 more source

Unveiling the potentials and action mechanisms of Citri reticulatae Pericarpium as an anti‐inflammatory food

open access: yesFood Frontiers, Volume 6, Issue 1, Page 163-184, January 2025.
The review summarized advances in utilizing CRP for the prevention and treatment of inflammation under various pathological conditions. The underlying mechanism has focused on polymethoxyflavones (PMFs) present in CRP and its interaction with gut microbiota. Abstract Modern lifestyle has led human body under a frequent exposure of chronic inflammation.
Yanyi Li   +5 more
wiley   +1 more source

Isolation and characterization of a novel methanogen Methanosarcina hadiensis sp. nov. from subsurface Boom Clay pore water

open access: yesEnvironmental Microbiology, Volume 26, Issue 12, December 2024.
We isolated a novel methanogenic archaeon, Methanosarcina hadiensis sp. nov. (TD41E1‐1), from Boom Clay pore water at a depth of 225 m. It exhibits unique characteristics compared to previously characterized Methanosarcina species, such as the inability to perform acetoclastic methanogenesis and the presence of extensive surface appendages.
Francisco Javier Giménez   +4 more
wiley   +1 more source

AN INVESTIGATION OF THE EFFECTS OF CORRINOID STRUCTURE ON THE METHANOGENESIS PATHWAY IN \u3ci\u3eMETHANOSARCINA BARKERI\u3c/i\u3e STRAIN \u3ci\u3eFUSARO\u3c/i\u3e [PDF]

open access: yes, 2018
Methane is responsible for at least 10% of greenhouse gas emissions in the United States alone, and although not the most abundant, it is one of the most dangerously potent greenhouse gases.
Kennedy, Amanda Marie
core   +1 more source

On the influence of cobamides on organohalide respiration and mercury methylation [PDF]

open access: yes, 2019
Corrinoids are metallic cofactors that serve as prosthetic groups for numerous reactions catalyzed by various microorganisms, ranging from carbon and nitrogen cycling to toxic waste remediation.
Jiang, Nannan
core   +1 more source

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