Abstract
WHEN riboflavin is administered to the rat, a large amount of riboflavin is concentrated in the mucous membrane of the intestine, and an increase of flavin mononucleotide also occurs1. This result suggests that the administered riboflavin might be phosphorylated to flavin mononucleotide in the small intestine. As to the supposed mechanism of phosphorylation of riboflavin in this tissue, other than the action of flavokinase2, the transferase action of phosphomonoesterase was examined.
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YAGI, K., OKUDA, J. Phosphorylation of Riboflavin by Transferase Action. Nature 181, 1663–1664 (1958). https://doi.org/10.1038/1811663a0
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DOI: https://doi.org/10.1038/1811663a0
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