{"symbol":"SRM","synonyms":["PAPT","SRML1","SPS1","SPDSY"],"name":"spermidine synthase","description":"The polyamines putrescine, spermine, and spermidine are ubiquitous polycationic mediators of cell growth and differentiation. Spermidine synthase is one of four enzymes in the polyamine-biosynthetic pathway and carries out the final step of spermidine biosynthesis. This enzyme catalyzes the conversion of putrescine to spermidine using decarboxylated S-adenosylmethionine as the cofactor. [provided by RefSeq, Jul 2008]","ncbiEntrezGeneId":6723,"ncbiEntrezGeneUrl":"http://www.ncbi.nlm.nih.gov/gene/6723","proteins":[{"symbol":"SPEE_HUMAN","href":"/api/1.0/protein/SPEE_HUMAN"}],"hgncRootFamilies":[]}