IUBMB Enzyme Nomenclature


Accepted name: fructoselysine 3-epimerase

Reaction: N6-(D-fructosyl)-L-lysine = N6-(D-psicosyl)-L-lysine

Other name(s): frlC (gene name)

Systematic name: D-fructosyl-L-lysine 3-epimerase

Comments: The enzyme, characterized from the bacterium Escherichia coli, is involved in the catabolism of fructoseamines, amino acid sugar complexes that are formed non-enzymically.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Wiame, E. and Van Schaftingen, E. Fructoselysine 3-epimerase, an enzyme involved in the metabolism of the unusual Amadori compound psicoselysine in Escherichia coli. Biochem. J. 378 (2004) 1047-1052. [PMID: 14641112]

[EC created 2017]

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