Application

Spermine, a polycationic biogenic polyamine derived from spermidine, may be used in a wide variety of biological applications as a supplement or regulatory agent.Used as co-matrix with DHB for MALDI-MS of sialylated glycans in negative ion mode.

Biochem/physiol Actions

Mixed NMDA glutamate receptor agonist/antagonist at the polyamine site. Neuroprotective effects have been observed at high concentrations (1 mM), while neurotoxicity is observed at lower concentrations. It enhances agonist effectiveness at the strychnine-insensitive glycine site. Plays a role in cellular proliferation and differentiation; inhibits neuronal nitric oxide synthase (nNOS).