Saccharopine is an intermediate in the metabolism of amino acid lysine. It is a precursor of lysine in the alpha-aminoadipate pathway which occurs in fungi and euglenids. In mammals and higher plants saccharopine is an intermediate in the degradation of lysine, formed by condensation of lysine and alpha-ketoglutarate.

Quick Facts Names, Identifiers ...

Saccharopine

Names
IUPAC name 2-[(5-Amino-5-carboxypentyl)amino]pentanedioic acid[1]
Identifiers
CAS Number	997-68-2 N
3D model (JSmol)	Interactive image
3DMet	B01246
ChEBI	CHEBI:16927 Y
ChemSpider	141086 Y
DrugBank	DB04207 Y
KEGG	C00449 N
MeSH	saccharopine
PubChem CID	160556
UNII	WBQ73O8W32 N
InChI InChI=1S/C11H20N2O6/c12-7(10(16)17)3-1-2-6-13-8(11(18)19)4-5-9(14)15/h7-8,13H,1-6,12H2,(H,14,15)(H,16,17)(H,18,19) N Key: ZDGJAHTZVHVLOT-UHFFFAOYSA-N N
SMILES NC(CCCCNC(CCC(=O)O)C(=O)O)C(=O)O
Properties
Chemical formula	C11H20N2O6
Molar mass	276.289 g·mol−1
Related compounds
Related alkanoic acids	4-(γ-Glutamylamino)butanoic acid Hypusine
Related compounds	Palmitoylethanolamide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

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The reactions involved, catalysed by saccharopine dehydrogenases, are:

lysine + alpha-ketoglutarate ⇌ saccharopine ⇌ glutamate + 2-aminoadipate 6-semialdehyde

Saccharopinuria (high amounts of saccharopine in the urine) and saccharopinemia (an excess of saccharopine in the blood) are conditions present in some inherited disorders of lysine degradation.

Saccharopine was first isolated in 1961 from yeasts (Saccharomyces, hence the name) by Darling and Larsen.^[2]

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