The naturally occurring polyamines putrescine, spermidine or spermine are ubiquitous in all cells. C with shaking in air flow. As described earlier, this strain cannot synthesize spermidine due to lack of spermidine synthase (genome (http://db.yeastgenome.org/cgi-bin/GO/goSlimMapper.pl), Affymetrix NetAffx and gene ontology consortium (http://www.geneontology.org) databases. Significance of enrichment was assessed using hypergeometric distribution. Real time PCR analysis… Continue reading The naturally occurring polyamines putrescine, spermidine or spermine are ubiquitous in