Enzymes
| UniProtKB help_outline | 3 proteins |
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- Name help_outline N6-(D-psicosyl)-L-lysine Identifier CHEBI:61403 Charge 1 Formula C12H25N2O7 InChIKeyhelp_outline BFSYFTQDGRDJNV-CDEVMZEPSA-O SMILEShelp_outline [NH3+][C@@H](CCCC[NH2+]CC(=O)[C@H](O)[C@H](O)[C@H](O)CO)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline N6-(D-fructosyl)-L-lysine Identifier CHEBI:61393 Charge 1 Formula C12H25N2O7 InChIKeyhelp_outline BFSYFTQDGRDJNV-AYHFEMFVSA-O SMILEShelp_outline [NH3+][C@@H](CCCC[NH2+]CC(=O)[C@@H](O)[C@H](O)[C@H](O)CO)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:28390 | RHEA:28391 | RHEA:28392 | RHEA:28393 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Fructoselysine 3-epimerase, an enzyme involved in the metabolism of the unusual Amadori compound psicoselysine in Escherichia coli.
Wiame E., Van Schaftingen E.
The frl (fructoselysine) operon encodes fructoselysine 6-kinase and fructoselysine 6-phosphate deglycase, allowing the conversion of fructoselysine into glucose 6-phosphate and lysine. We now show that a third enzyme encoded by this operon catalyses the metal-dependent reversible interconversion o ... >> More
The frl (fructoselysine) operon encodes fructoselysine 6-kinase and fructoselysine 6-phosphate deglycase, allowing the conversion of fructoselysine into glucose 6-phosphate and lysine. We now show that a third enzyme encoded by this operon catalyses the metal-dependent reversible interconversion of fructoselysine with its C-3 epimer, psicoselysine. The enzyme can be easily assayed through the formation of tritiated water from [3-3H]fructoselysine. Psicoselysine supports the growth of Escherichia coli, causing the induction of the three enzymes of the frl operon. No growth on fructoselysine or psicoselysine was observed with Tn5 mutants in which the putative transporter (FrlA) or fructoselysine 6-phosphate deglycase (FrlB) had been inactivated, indicating the importance of the frl operon for the metabolism of both substrates. The ability of E. coli to grow on psicoselysine suggests the occurrence of this unusual Amadori compound in Nature. << Less
Biochem. J. 378:1047-1052(2004) [PubMed] [EuropePMC]
This publication is cited by 4 other entries.