Spermine  => N-acetylated spermine (Schizosaccharomyces pombe)
spermine  => n-acetylated spermine (schizosaccharomyces pombe)
Spermine  => N-acetylated spermine (Schizosaccharomyces pombe)
spermine  => n-acetylated spermine (schizosaccharomyces pombe)