Results 31 to 40 of about 1,347 (167)
STUDIES OF THE MECHANISM OF ACTION OF COBAMIDE COENZYMES [PDF]
Annals of the New York Academy of Sciences, 1964 Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/73404/1/j.1749-6632.1964.tb45046.x ...
Abeles, R. H., Lee, H. A.
openaire +3 more sources
mLife, Volume 2, Issue 4, Page 416-427, December 2023., 2023 Abstract Cobalamin (B12), an essential nutrient and growth cofactor for many living organisms on Earth, can be fully synthesized only by selected prokaryotes in nature. Therefore, microbial communities related to B12 biosynthesis could serve as an example subsystem to disentangle the underlying ecological mechanisms balancing the function and taxonomic
Jiayin Zhou +8 more
wiley +1 more source
The Moon‐Forming Impact and the Autotrophic Origin of Life
ChemPlusChem, Volume 88, Issue 11, November 2023., 2023 All ecosystems start with autotrophs, cells that convert CO2 to organics. In autotrophic theories for origins, life started from CO2. The Moon‐forming impact supplied pure CO2 as the primordial biogenic substrate. Transition metals readily convert H2 and CO2 into formate, acetate and pyruvate, doing the job of 127 enzymes in modern cells, suggesting a ...
Natalia Mrnjavac +4 more
wiley +1 more source
Remediation Journal, Volume 33, Issue 4, Page 323-337, Fall 2023., 2023 Abstract Trichloroethylene (TCE) is a toxic organic compound, which can adversely affect human health. The chemical is one of the most frequently found contaminants in groundwater in the United States and around the world. A landfill in Maryland contaminated with high levels of TCE decades ago was added to the U.S.
Shahrzad Saffari Ghandehari +4 more
wiley +1 more source
Global Challenges, Volume 7, Issue 5, May 2023., 2023 This review collates information concerning different seaweeds and how they and their constituents can reduce methane from ruminants and ensure sustainable production of ruminant proteins in an environmentally beneficial manner. Phlorotannins offer potential for use as feed additives to reduce methane emissions from ruminants. Abstract The potential of
Goldy De Bhowmick, Maria Hayes
wiley +1 more source
Gut Commensal Bacteroidetes Encode a Novel Class of Vitamin B12-Binding Proteins
mBio, 2022 Human gut commensal Bacteroidetes rely on multiple transport systems to acquire vitamin B12 and related cobamides for fitness in the gut. In addition to a set of conserved transport proteins, these systems also include a diverse repertoire of additional ...
E. E. Putnam +8 more
doaj +1 more source
The complex machinery of human cobalamin metabolism
Journal of Inherited Metabolic Disease, Volume 46, Issue 3, Page 406-420, May 2023., 2023 Abstract Vitamin B12 (cobalamin, Cbl) is required as a cofactor by two human enzymes, 5‐methyltetrahydrofolate‐homocysteine methyltransferase (MTR) and methylmalonyl‐CoA mutase (MMUT). Within the body, a vast array of transporters, enzymes and chaperones are required for the generation and delivery of these cofactor forms.
Thomas J. McCorvie +3 more
wiley +1 more source
Molecular Ecology, Volume 32, Issue 4, Page 920-935, February 2023., 2023 Abstract Kissing bugs (Hempitera: Reduviidae) are obligately and exclusively blood feeding insects. Vertebrate blood is thought to provide insufficient B vitamins to insects, which rely on symbiotic relationships with bacteria that provision these nutrients.
Carissa A. Gilliland +4 more
wiley +1 more source
, 2023 Cobamides are required by most organisms but are only produced by specific prokaryotic taxa. These commonly shared cofactors play significant roles in shaping the microbial community and ecosystem function.
Jichen Wang (9256810) +3 more
core +2 more sources
Cobalamin-dependent and cobamide-dependent methyltransferases [PDF]
Current Opinion in Structural Biology, 2008 Methyltransferases that employ cobalamin cofactors, or their analogs the cobamides, as intermediates in catalysis of methyl transfer play vital roles in energy generation in anaerobic unicellular organisms. In a broader range of organisms they are involved in the conversion of homocysteine to methionine.
Rowena G, Matthews +2 more
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