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Role of vitamin B12 in methyl transfer for methane biosynthesis by Methanosarcina barkeri.
Science ; 216(4543): 303-5, 1982 Apr 16.
Article em En | MEDLINE | ID: mdl-7063887
When Methanosarcina barkeri is grown on methanol as the sole carbon source, a B12-containing protein is synthesized by this organism. This B12 protein contains bound aquocobalamin, and when this cofactor is reduced and methylated with [14C]methyl iodide, the resultant [14C]methyl B12 protein is extremely active in the biosynthesis of 14C-labeled methane. These findings indicate that a B12-dependent system is operative in the biological formation of methane in addition to other systems that are B12-independent.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Vitamina B 12 / Euryarchaeota / Metano Idioma: En Revista: Science Ano de publicação: 1982 Tipo de documento: Article
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Vitamina B 12 / Euryarchaeota / Metano Idioma: En Revista: Science Ano de publicação: 1982 Tipo de documento: Article