Vitamin B12, also known as cobalamin, functions as a critical cofactor for two key enzymes: cytoplasmic methionine synthase (MTR) and mitochondrial methylmalonyl-CoA mutase (MUT). This compound enables detailed research into homocysteine-to-methionine conversion, odd-chain fatty acid and branched-chain amino acid catabolism, nucleotide synthesis, epigenetic regulation via SAM-dependent methylation, and mitochondrial TCA cycle anaplerosis.
Produced under GMP-aligned conditions, Vitamin B12 is supplied as a stable powder with rigorous analytical verification, including structural confirmation, purity assessment by HPLC, and a complete third-party Certificate of Analysis (CoA) per batch to support reproducible outcomes in biochemical and cellular research.
Key Scientific Features
- ≥99% purity confirmed by reverse-phase HPLC and mass spectrometry.
- Verified identity as cobalamin (corrin ring with central cobalt atom; forms include methylcobalamin and adenosylcobalamin as active cofactors).
- Stable powder format optimized for laboratory reconstitution and experimental use.
- Batch-specific third-party CoA documenting purity, identity, content, and contaminant absence.
- Synthesized in GMP-aligned, ISO-compliant facilities.
- Ideal for models examining cofactor-dependent enzymatic reactions in one-carbon metabolism, mitochondrial function, and epigenetic pathways.
Research-Referenced Attributes (Pre-clinical literature observations; no therapeutic claims)
- In cellular and rodent models, cobalamin serves as cofactor for methionine synthase, facilitating homocysteine remethylation to methionine and regenerating tetrahydrofolate for one-carbon transfer reactions essential to nucleotide biosynthesis and methylation cycles (PMID: 35589199, https://pubmed.ncbi.nlm.nih.gov/35589199/; PMC9420401).
- Mitochondrial methylmalonyl-CoA mutase utilizes adenosylcobalamin to isomerize methylmalonyl-CoA to succinyl-CoA, supporting TCA cycle entry from branched-chain amino acids and odd-chain fatty acids in preclinical systems (PMID: 29477223).
- Pre-clinical investigations link cobalamin availability to maintenance of methionine synthase activity, prevention of homocysteine accumulation, and preservation of SAM:SAH ratios critical for epigenetic regulation and cellular redox balance (various models in PMC11311337).
- In deficiency paradigms or metabolic disruption models, reduced cobalamin function associates with elevated methylmalonic acid, impaired mitochondrial energy metabolism, and altered one-carbon flux (PMID: 32644558).
Why Researchers Choose Nationwide Peptides Vitamin B12
- Provides the exact cofactor form referenced in foundational studies of methionine synthase and methylmalonyl-CoA mutase mechanisms.
- Offers complete analytical transparency: HPLC ≥99%, MS confirmation, and downloadable batch-specific CoA.
- Delivers batch-to-batch reproducibility for consistent results in metabolic, epigenetic, and mitochondrial research protocols.
- Preferred by laboratories investigating one-carbon metabolism, homocysteine pathways, and cofactor-dependent biochemistry.
- Catalog options include standard research quantities with competitive pricing and bulk availability.
For Research Use Only. This product is supplied strictly for in vitro and in vivo laboratory investigations by qualified researchers in controlled experimental settings. Statements regarding this product have not been evaluated by the FDA. It is not intended for human consumption, injection, diagnostic use, therapeutic application, or any non-research purpose.
