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Pathway Description
Riboflavin Metabolism
Homo sapiens
Metabolic Pathway
Riboflavin (vitamin B2) is an important part of the enzyme cofactors FAD (flavin-adenine dinucleotide) and FMN (flavin mononucleotide). The name "riboflavin" actually comes from "ribose" and "flavin". Like the other B vitamins, riboflavin is needed for the breaking down and processing of ketone bodies, lipids, carbohydrates, and proteins. Riboflavin is found in many different foods, such as meats and vegetables.As the digestion process occurs, many different flavoproteins that come from food are broken down and riboflavin is reabsorbed. The reverse reaction is mediated by acid phosphatase 6. FMN can be turned into to FAD via FAD synthetase, while the reverse reaction is mediated by nucleotide pyrophosphatase. FAD and FMN are essential hydrogen carriers and are involved in over 100 redox reactions that take part in energy metabolism.
References
Riboflavin Metabolism References
Lehninger, A.L. Lehninger principles of biochemistry (4th ed.) (2005). New York: W.H Freeman.
Salway, J.G. Metabolism at a glance (3rd ed.) (2004). Alden, Mass.: Blackwell Pub.
Henriques BJ, Olsen RK, Bross P, Gomes CM: Emerging roles for riboflavin in functional rescue of mitochondrial beta-oxidation flavoenzymes. Curr Med Chem. 2010;17(32):3842-54.
Pubmed: 20858216
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