Biosynthesis of vitamin B12: mode of incorporation of factor III into cobyrinic acid.
AUTOR(ES)
Nussbaumer, C
RESUMO
Extensive chemical degradation of cobyrinic acid biosynthesized from a sample of factor III radiochemically labeled in its three methyl groups demonstrates that label is retained exclusively in the two methyl groups at positions C-2 and C-7 and confirms that the C-20 methyl group of the precursor is lost during formation of the corrin ring system.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=318976Documentos Relacionados
- Biosynthesis of vitamin B12: Mode of incorporation of factor III into cobyrinic acid
- Biosynthesis of vitamin B12: Concerning the identity of the two-carbon fragment eliminated during anaerobic formation of cobyrinic acid
- Biosynthesis of vitamin B12: Factor IV, a new intermediate in the anaerobic pathway
- Biosynthesis of vitamin B12: stepwise amidation of carboxyl groups b, d, e, and g of cobyrinic acid a,c-diamide is catalyzed by one enzyme in Pseudomonas denitrificans.
- Biosynthesis of vitamin B12: structure of precorrin-6x octamethyl ester.
