Reference: Landry J and Sternglanz R (2003) Yeast Fms1 is a FAD-utilizing polyamine oxidase. Biochem Biophys Res Commun 303(3):771-6

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Abstract


In this report we show that recombinant Saccharomyces cerevisiae Fms1 protein is a polyamine oxidase that binds FAD with an FAD:Fms1 stoichiometry of 1:1. Biochemical characterization of Fms1 shows that it can oxidize spermine, N(1)-acetylspermine, N(1)-acetylspermidine, and N(8)-acetylspermidine, but not spermidine. The products of spermine oxidation are spermidine and 3-aminopropanal. A kinetic analysis revealed that spermine, N(1)-acetylspermine, and N(1)-acetylspermidine are oxidized with similar efficiencies, while N(8)-acetylspermidine is a poor substrate. The data support a previous report, suggesting that Fms1 is responsible for the production of beta-alanine from spermine for the synthesis of pantothenic acid.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't | Research Support, U.S. Gov't, P.H.S.
Authors
Landry J, Sternglanz R
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