Biosynthesis of vitamin B12: isolation of precorrin-6x, a metal-free precursor of the corrin macrocycle retaining five S-adenosylmethionine-derived peripheral methyl groups.
delta-Aminolevulinic acid and trimethylisobacteriochlorin are converted by cell-free protein preparations from Pseudomonas denitrificans into a metal-free pigment, precorrin-6x. This pigment, which accumulates when the cell-free system lacks NADPH, can be enzymically converted in high yield (greater...
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| Publicat a: | Proc Natl Acad Sci U S A |
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| Autors principals: | , , |
| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
National Academy of Sciences
1990
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| Matèries: | |
| Accés en línia: | https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC55046/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/2247449/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.87.22.8795 |
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