Source:http://linkedlifedata.com/resource/umls/id/C0037871
MSH: A polyamine formed from putrescine. It is found in almost all tissues in association with nucleic acids. It is found as a cation at all pH values, and is thought to help stabilize some membranes and nucleic acid structures. It is a precursor of spermine.,CSP: polyamine found in most tissues in association with nucleic acids; formed from putrescine and a precursor of spermine.