Assay of Spermidine N8-Acetyltransferase

  • Jim Blankenship
Part of the Methods in Molecular Biology™ book series (MIMB, volume 79)


Spermidine undergoes three different metabolic reactions in mammalian tissues. It can be converted to spermine by the addition of an aminopropyl group, or it can be acetylated on either of the terminal nitrogens using acetyl-coenzyme A as the acetyl donor (1). Acetylation on the terminal nitrogen adjacent to the 3-carbon chain is termed N 1-acetylation and is catalyzed by a cytoplasmic enzyme, spermidine/spermine N 1-acetyltransferase (2). This N 1-acetylspermidine is converted by polyamine oxidase to putrescine, the normal precursor for spermidine. Thus, N 1-acetylation serves as the initial step in the conversion of spermidine to putrescine.


Tissue Grinder Polyamine Oxidase Aminopropyl Group Terminal Nitrogen Settle Volume 
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Copyright information

© Humana Press Inc. 1998

Authors and Affiliations

  • Jim Blankenship
    • 1
  1. 1.Department of Physiology and Pharmacology, School of PharmacyUniversity of the PacificStockton

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