Results 71 to 80 of about 1,347 (167)
Cobamide and cobamide precursor cross-feeding: a genomic perspective [PDF]
, 2019 Many bacteria cannot synthesize all the nutrients they require. One type of nutrient that many bacteria must acquire from their environment is cobamides, a class of cofactors including vitamin B12 and related analogs.
Shelton, Amanda Nicole
core
Anaerobic biosynthesis of the lower ligand of vitamin B12 [PDF]
, 2015 Vitamin B12 (cobalamin) is required by humans and other organisms for diverse metabolic processes, although only a subset of prokaryotes is capable of synthesizing B12 and other cobamide cofactors.
Begley, Tadhg +12 more
core +1 more source
Regiospecific Formation of Cobamide Isomers Is Directed by CobT
, 2016 Cobamides, which include vitamin B12 (cobalamin), are a class of modified tetrapyrroles synthesized exclusively by prokaryotes that function as cofactors for diverse biological processes. Cobamides contain a centrally bound cobalt ion that coordinates to
Omer Ad (1704193) +8 more
core +1 more source
Vitamin levels in the Gulf of Maine and ecological significance of vitamin B12 there [PDF]
, 1981 Bioassays were used to determine the concentration of vitamin B12, cobamides (B12 + analogs), thiamin, and biotin in Gulf of Maine water samples from winter, the spring bloom, and summer…
Swift, Dorothy G.
core +1 more source
ESSENTIAL COFACTORS IN ANAEROBIC MICROBIAL CONSORTIA USED FOR BIOREMEDIATION: BIOSYNTHESIS, FUNCTION AND REGENERATION [PDF]
, 2018 Most microorganisms in nature live in communities and have developed tightly coordinated metabolism via metabolite exchanges. Cofactors are “helper molecules” in all cells, modulating the activity of many enzymes or serving as the electron shuttle ...
Wang, Po-Hsiang
core +2 more sources
Cobamide extraction procedures for analysis of tissue and microbiome samples [PDF]
The structure of cobalamin has an upper β- axial ligand group and a lower α-axial ligand base. Different groups can attach to the upper ligand to form different forms of cobalamin.
Chang, Shun
core
Cobamides and Ribonucleotide Reduction
Journal of Biological Chemistry, 1968 H P C Hogenkamp +4 more
openaire +2 more sources
Redox Conditions Determine Microbial Cobamide Production in Hyporheic Sediment [PDF]
, 2019 All kingdoms of life rely on cobalamin, a coenzyme produced by a subset of Bacteria and Archaea. Cobalamin belongs to a family of molecules called cobamides.
Seus, Laurel
core
The Enzymatic Synthesis of Cobamide Coenzymes
Journal of Biological Chemistry, 1962 R O, BRADY, E G, CASTANERA, H A, BARKER
openaire +2 more sources
Cobamides and Ribonucleotide Reduction
Journal of Biological Chemistry, 1974 W.H. Orme-Johnson +2 more
openaire +1 more source