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Form of vitamin B12
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
Methylcobalamin
Vitamin used in animal cell metabolism
degradation. Methylcobalamin is also offered as a dietary supplement. There is no advantage to the use of adenosylcobalamin or methylcobalamin forms for
Vitamin_B12
Form of vitamin B-12
prepared by this method include the naturally occurring coenzymes methylcobalamin and cobamamide, and other cobalamins that do not occur naturally, such
Cyanocobalamin
Combination drug
contains 5.635 mg of folate as L-methylfolate, 1 mg of vitamin B12 as methylcobalamin, 50 mg of vitamin B2 as riboflavin, and 5 mg of vitamin B6 as pyridoxine
Cerefolin
Disorder of amino acid metabolism
Homocystinuria (HCU) is an inherited disorder of the metabolism of the amino acid methionine due to a deficiency of cystathionine beta synthase or methionine
Homocystinuria
Pharmaceutical compound
contains L-methylfolate (as Metafolin, a calcium salt of vitamin B9), methylcobalamin (vitamin B12) and pyridoxal 5'-phosphate (vitamin B6). It is a vitamin
Metanx
Form of vitamin B12
a sufficient level of the two active coenzymes: methylcobalamin and adenosylcobalamin. Methylcobalamin Cyanocobalamin Vitamin B12 Cobalamin biosynthesis
Hydroxocobalamin
Discomfort in the legs during walking due to nerve impingement
anti-inflammatory drugs (NSAIDs), prostaglandin-based drugs, gabapentin, and methylcobalamin. However, the quality of evidence supporting their use is not high
Neurogenic_claudication
Chemical process in which a methyl (CH3) group is covalently attached to a molecule
cobalamin-independent: Plants have both, animals depend on the methylcobalamin-dependent form. In methylcobalamin-dependent forms of the enzyme, the reaction proceeds
Methylation
Medical condition
tetrahydrofolate-methyltransferase; affected individuals cannot properly metabolize methylcobalamin, a type of Vitamin B12. This disorder causes neurological problems
Arakawa's_syndrome_II
Chemical compound
This process uses N5-methyl tetrahydrofolate as the methyl donor and Methylcobalamin (vitamin B12)-related enzymes. More detail on these enzymes can be
Homocysteine
Non-protein chemical compound or metallic ion
(B6) None Amino and carboxyl groups Bacteria, archaea and eukaryotes Methylcobalamin Vitamin B12 Methyl group acyl groups Bacteria, archaea and eukaryotes
Cofactor_(biochemistry)
Nutrients required by organisms in small amounts
legumes, lentils, cereal, liver B12 cyanocobalamin, hydroxocobalamin, methylcobalamin, adenosylcobalamin water 2.4 μg/2.4 μg vitamin B12 deficiency anemia
Vitamin
Chemical group (–CH3) derived from methane
It is routinely produced by various enzymes of the radical SAM and methylcobalamin varieties. The reactivity of a methyl group depends on the adjacent
Methyl_group
Biologically active form of vitamin B12
cofactor over time may prove to hold regulatory function of DNA and RNA. Methylcobalamin Hydroxocobalamin Cyanocobalamin Vitamin B12 Cobalamin biosynthesis
Adenosylcobalamin
Chemical reactions and pathways
ion and is usually found in one of two biologically active forms: methylcobalamin and adenosylcobalamin. Most prokaryotes, as well as animals, have cobalamin-dependent
Cobalamin_biosynthesis
Group of vitamins
infancy and pregnancy. Vitamin B12 Cobalamins Commonly cyanocobalamin or methylcobalamin in vitamin supplements. A coenzyme involved in the metabolism of all
B_vitamins
Japanese pharmaceutical company
Kidney Cancer Leqembi (lecanemab) - Alzheimer's disease Methylcobal (methylcobalamin) - Peripheral neuropathy Myonal (eperisone) - Muscle relaxant Selbex
Eisai_(company)
Anticonvulsant medication
Pretek-GM, Rejusite, Renerve-P, Safyvit-PR, Vitcobin-P, and Voltanerv with Methylcobalamin and ALA by Cogentrix Pharma. In the US, Lyrica is marketed by Viatris
Pregabalin
Mammalian protein found in humans
without which the enzyme cannot function at all. Vitamin B12 (as methylcobalamin) serves only as an internal methyl shuttle, not as the source of methyl
Methionine_synthase
reversible. A similar effect was observed by Kräutler in 1984 for methylcobalamin. The term 'persistent radical effect' was coined in 1992 by Daikh and
Persistent_radical_effect
Study of organic compounds containing metal(s)
trimethylaluminium (Me3Al). A naturally occurring organometallic complex is methylcobalamin (a form of Vitamin B12), which contains a cobalt-methyl bond. This
Organometallic_chemistry
Nervous system disease affecting nerves beyond the brain and spinal cord
sclerosis may also be causal. Vitamin deficiency states: Vitamin B12 (Methylcobalamin), vitamin A, vitamin E, vitamin B1 (thiamin) Physical trauma: compression
Peripheral_neuropathy
Vitamin B12 68-19-9 C63H88CoN14O14P cyanocobalamin C63H91CoN13O14P methylcobalamin C72H100CoN18O17P adenosylcobalamin C76H52O46 Tannic acid 1401-55-4
Glossary_of_chemical_formulae
Vitamin B9; nutrient essential for DNA synthesis
thymidylate synthase. Methyl-THF converts vitamin B12 to methyl-B12 (methylcobalamin). Methyl-B12 converts homocysteine, in a reaction catalyzed by homocysteine
Folate
Epithelial cell in the stomach
absorption. It can be treated with injections of replacement vitamin B12 (methylcobalamin, hydroxocobalamin or cyanocobalamin). Achlorhydria is another autoimmune
Parietal_cell
Chemical element with atomic number 84 (Po)
reported that some microbes can methylate polonium by the action of methylcobalamin. This is similar to the way in which mercury, selenium, and tellurium
Polonium
Covalently bonded non-protein part of an enzyme
eukaryotes Biotin Carboxylation Bacteria, archaea and eukaryotes Methylcobalamin Methylation and isomerisation Bacteria, archaea and eukaryotes Thiamine
Prosthetic_group
Chemical compound acting as a vitamin
5-methyltetrahydrofolate Vitamin B12 Cyanocobalamin, hydroxocobalamin, methylcobalamin, adenosylcobalamin Vitamin C Ascorbic acid, dehydroascorbic acid, calcium
Vitamer
Species of green alga
extracts, tablets or powder. Vitamin B12, specifically in the form of methylcobalamin, has been identified in Chlorella vulgaris. "Chlorella vulgaris". NCBI
Chlorella_vulgaris
Hydroponic nutrient solution
; Dilshad, P.; Vaidyanathan, G.; Thakur, M.S.; Sarada, R. (2015). "Methylcobalamin – a form of vitamin B12 identified and characterised in Chlorella vulgaris"
Hoagland_solution
Growing plants without soil using nutrients in water
; Dilshad, P.; Vaidyanathan, G.; Thakur, M.S.; Sarada, R. (2015). "Methylcobalamin – a form of vitamin B12 identified and characterised in Chlorella vulgaris"
Hydroponics
Chemistry of radioactive materials
convert these elements into volatile compounds, it is thought that methylcobalamin (vitamin B12) alkylates these elements to create the dimethyls. It
Radiochemistry
Protein-coding gene in the species Homo sapiens
cyanocobalamin as well as the dealkylation of alkylcobalamins including methylcobalamin and adenosylcobalamin. The MMACHC gene product is characterised as
MMACHC
adenosyltransferase deficiency Methyl mercury antenatal infection Methylcobalamin deficiency cbl G type Methylcobalamin deficiency, cbl E complementation type Methylenetetrahydrofolate
List_of_diseases_(M)
Biosynthesis of acetic acid by prokaryotes
monoxide dehydrogenase. The coupling of the methyl group (provided by methylcobalamin), the CO, and the coenzyme A is catalyzed by acetyl-CoA synthase. The
Acetogenesis
Indian pharmacist
world's first globally approved nasal drug delivery system, utilizes Methylcobalamin, the biologically active form of Vitamin B12, to effectively address
Ketan_Patel
Protein-coding gene in the species Homo sapiens
homocysteine to methionine by MTR requires the derivative of cobalamin, methylcobalamin. Cobalamin metabolism is initiated by the endocytosis of cobalamin
MTRR_(gene)
Biological processes that may contribute to autism
glutathione metabolism can be improved. Subcutaneously by injection of methylcobalamin, a form of B12 Oral folinic acid A vitamin and mineral supplement that
Mechanism_of_autism
RNA family
The active portion of the cofactor is in the beta-axial position. Methylcobalamin (MeCbl) and adenosylcobalamin (AdoCbl) are the biologically active
Cobalamin_riboswitch
Type of protein domain
the cobalamin cofactor, with cobalt bonded either to a methyl group (methylcobalamin) or to 5'-deoxyadenosine (adenosylcobalamin). Cobalamin-binding domains
Vitamin_B12-binding_domain
Class of enzymes
1074/jbc.271.31.18725. PMID 8702528. Harms U, Thauer RK (February 1996). "Methylcobalamin: coenzyme M methyltransferase isoenzymes MtaA and MtbA from Methanosarcina
(Methyl-Co(III) methanol-specific corrinoid protein):coenzyme M methyltransferase
(Methyl-Co(III)_methanol-specific_corrinoid_protein):coenzyme_M_methyltransferase
American biochemist and autism researcher
claimed that administering these compounds as supplements, as well as methylcobalamin and folinic acid, to autistic children can significantly restore their
Jill_James
Inability to properly digest food due to a lack of digestive enzymes from the pancreas
cobalamin issues should instead be treated with hydroxocobalamin or methylcobalamin.[citation needed] Cyanocobalamin deficiency is very common in cats
Exocrine pancreatic insufficiency
Exocrine_pancreatic_insufficiency
Study of the role of metals in biology
and proteins include the hydrogenases, FeMoco in nitrogenase, and methylcobalamin. These naturally occurring organometallic compounds. This area is more
Bioinorganic_chemistry
Chemistry of compounds with a carbon to cobalt bond
Alkylcobalt is represented by vitamin B12 and related enzymes. In methylcobalamin the ligand is a methyl group, which is electrophilic. in vitamin B12
Organocobalt_chemistry
Drug delivery method
impoverished areas. Other molecules like sildenafil citrate, tadalafil, methylcobalamin and vitamin D3 are also developed by IntelGenx Zim Laboratories Ltd
Thin-film_drug_delivery
adenosyltransferase deficiency, autosomal recessive; 250850; MAT1A Methylcobalamin deficiency, cblG type; 250940; MTR Methylmalonic aciduria and homocystinuria
List_of_OMIM_disorder_codes
Italian-American chemist
postdoctoral fellow with Jenny Glusker. There she determined the structure of methylcobalamin, an active compound of Vitamin B12. In 1982 Rossi joined Vassar College
Miriam_Rossi_(chemist)
American biochemist emeritus
1994). "Cobalamin-dependent methionine synthase: the structure of a methylcobalamin-binding fragment and implications for other B12-dependent enzymes"
Rowena_Green_Matthews
Protein-coding gene in humans
characterized by decreased levels of the coenzymes adenosylcobalamin and methylcobalamin. GRCh38: Ensembl release 89: ENSG00000168288 – Ensembl, May 2017 GRCm38:
MMADHC
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