Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. It is one of eight B vitamins. It is required by animals, which...

Cobalamin biosynthesis is the process by which bacteria and archea make cobalamin, vitamin B12. Many steps are involved in converting aminolevulinic acid...

Methylcobalamin (mecobalamin, MeCbl, or MeB12) is a cobalamin, a form of vitamin B12. It differs from cyanocobalamin in that the cyano group at the cobalt...

stable cobalamin analogs. The products are usually extracted and purified by phenol-methylene chloride extraction or by column chromatography. Cobalamin analogs...

Vitamin B12 deficiency, also known as cobalamin deficiency, is the medical condition in which the blood and tissue have a lower than normal level of vitamin...

Cobalamin riboswitch is a cis-regulatory element which is widely distributed in 5' untranslated regions of vitamin B12 (Cobalamin) related genes in bacteria...

Intrinsic factor (IF), cobalamin binding intrinsic factor, also known as gastric intrinsic factor (GIF), is a glycoprotein produced by the parietal cells...

the cobalamin-independent form, while algae have either one of the two, depending on species. Many different microorganisms express both the cobalamin-dependent...

B12 and a member of the cobalamin family of compounds. It is found in both raw and cooked beef, together with other cobalamins. Hydroxocobalamin, or another...

methyl group to Hcy to form Met. Methionine Syntheses can be cobalamin-dependent and cobalamin-independent: Plants have both, animals depend on the...

Transcobalamins are carrier proteins which bind cobalamin (B12). Transcobalamin I (TC-1), also known as haptocorrin (HC), R-factor, and R-protein is encoded...

Adenosylcobinamide-GDP ribazoletransferase (EC 2.7.8.26, CobS, cobalamin synthase, cobalamin-5'-phosphate synthase, cobalamin (5'-phosphate) synthase) is an enzyme with systematic...

of which is CBS deficiency. Others include the re-methylation defects (cobalamin defects, methionine synthase deficiency, MTHFR) and vitamin deficiencies...

adenosyltransferase) EC 2.5.1.17 is an enzyme which catalyses the conversion of cobalamin (vitamin B12) into one of its coenzyme forms, adenosylcobalamin (coenzyme...

Molloy, Anne M. (2014). "Guidelines for the diagnosis and treatment of cobalamin and folate disorders". British Journal of Haematology. 166 (4): 496–513...

Suchodolski, Jan S.; Steiner, Jörg M. (1 March 2010). "Association Study of Cobalamin Deficiency in the Chinese Shar Pei". Journal of Heredity. 101 (2): 211–217...

is not elevated in folic acid deficiency. Direct measurement of blood cobalamin remains the gold standard because the test for elevated methylmalonic...

Particularly of note is the cobalt complex, cobalamin (Vitamin B12) commonly used as a dietary supplement. Cobalamin is an important complex used in the manufacture...

acid rain. Cobalt is the active center of a group of coenzymes called cobalamins. Vitamin B12, the best-known example of the type, is an essential vitamin...

similar to TonB, a bacterial protein involved in energy transduction for cobalamin uptake. The MMACHC gene product catalyzes the decyanation of cyanocobalamin...

well as other herbivorous animals, use the clay licks as a source of cobalamin, otherwise known as vitamin B12. Macaws and their feathers have attracted...

Ferreira D, Yue WW, Froese DS (May 2023). "The complex machinery of human cobalamin metabolism". J Inherit Metab Dis. 46 (3): 406–20. doi:10.1002/jimd.12593...

B12-deficiency caused by mutations in CUBN that codes for cubilin the cobalamin receptor. Vitamin B12 deficiency is also prevalent in patients having...

Pyridoxal-5-Phosphate Pyridoxamine Vitamin B7 (biotin) Vitamin B9 (folate) Vitamin B12 (cobalamin) Choline Vitamin A (e.g. retinol (see also - provitamin A carotenoids))...

generally used to measure the amount of cobalamin in food. Its growth rate is proportional to the amount of cobalamin in the growth medium. However, lactis...

intermediate for the lower ligand of cobalamin. It is one of the enzymes of the anaerobic pathway of cobalamin biosynthesis, and one of the four proteins...

catalyzing difficult biochemical reactions, especially folic acid and cobalamin (vitamin B12). Among other honors, she was elected to the National Academy...

1996). "Neutrophil nuclear segmentation in mild cobalamin deficiency: relation to metabolic tests of cobalamin status and observations on ethnic differences...

disorder or clinical syndrome. Also known as vitamin B12, this form of cobalamin is a required cofactor of methylmalonyl-CoA mutase. Even with a functional...

one of the two classes of methionine synthases (i.e. cobalamin-dependent (EC 2.1.1.13) or cobalamin-independent (EC 2.1.1.14)). This methionine can then...