Fructoselysine is an Amadori adduct of

glucose Glucose is a simple sugar with the molecular formula . Glucose is overall the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, u ...

to lysine. It breaks down into furosine on acid-catalysed hydrolysis. ''E. coli'' breaks it down using the enzymes fructoselysine-6-kinase and fructoselysine 6-phosphate deglycase into

glucose 6-phosphate Glucose 6-phosphate (G6P, sometimes called the Robison ester) is a glucose sugar phosphorylated at the hydroxy group on carbon 6. This dianion is very common in cells as the majority of glucose entering a cell will become phosphorylated in this way ...

and lysine, a set of enzymes located on the ''frl'' (fructoselysine)

operon In genetics, an operon is a functioning unit of DNA containing a cluster of genes under the control of a single promoter. The genes are transcribed together into an mRNA strand and either translated together in the cytoplasm, or undergo splic ...

References

Monosaccharide derivatives Amino acid derivatives {{Organic-compound-stub