Spermine  => N-acetylated spermine (Saccharomyces cerevisiae)
spermine  => n-acetylated spermine (saccharomyces cerevisiae)
Spermine  => N-acetylated spermine (Saccharomyces cerevisiae)
spermine  => n-acetylated spermine (saccharomyces cerevisiae)