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Pathway Description
Saccharopinuria/Hyperlysinemia II
Mus musculus
Disease Pathway
Saccharopinuria (also known as: saccharopinemia, saccharopine dehydrogenase deficiency, and alpha-aminoadipic semialdehyde synthase deficiency) is caused by a partial deficiency of aminoadipic semialdehyde synthase (AASS) enzyme and causes an increase in saccharopine in the urine. Saccharopinuria is another form of hyperlysinemia. AASS has lysine ketoglutarate reductase (LKR) and saccharopine dehydrogenase (SDH) activity. AASS acts in the first 2 steps in lysine degradation. A defect in this enzyme results in accumulation of citrulline, lysine and saccharopin in the plasma; lysine in the spinal fluid; and citrulline, lysine and saccharopine in the urine. Symptoms include growth and mental retardation.
References
Saccharopinuria/Hyperlysinemia II References
Carson NA, Scally BG, Neill DW, Carre LJ: Saccharopinuria: a new inborn error of lysine metabolism. Nature. 1968 May 18;218(5142):679.
Pubmed: 5690339
Lysine Degradation 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.
This pathway was propagated using PathWhiz -
Pon, A. et al. Pathways with PathWhiz (2015) Nucleic Acids Res. 43(Web Server issue): W552–W559.
Propagated from PW000112
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