Spermidine Biosynthesis and Metabolism

Proteins (3)

Protein	Synonyms	Taxonomy
5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase	MTA/SAH nucleosidase; MTAN; EC 3.2.2.9; 5'-deoxyadenosine nucleosidase; DOA nucleosidase; dAdo nucleosidase; 5'-methylthioadenosine nucleosidase; MTA nucleosidase; S-adenosylhomocysteine nucleosidase; AdoHcy nucleosidase; SAH nucleosidase; SRH nucleosidas	Escherichia coli K-12
S-adenosylmethionine decarboxylase proenzyme	AdoMetDC; SAMDC; EC 4.1.1.50	Escherichia coli K-12
Polyamine aminopropyltransferase	Cadaverine aminopropyltransferase; 2.5.1.-; Putrescine aminopropyltransferase; PAPT; Spermidine aminopropyltransferase; 2.5.1.79; Spermidine synthase; SPDS; SPDSY; 2.5.1.16; Spermine synthase; 2.5.1.22; Thermospermine synthase	Escherichia coli K-12

Compound	Description
hydronium ion
adenine	A purine base and a fundamental unit of ADENINE NUCLEOTIDES.
Carbon Dioxide	A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.
Water	A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
spermidine	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.
s-adenosyl-3-methylthiopropylamine	decarboxylated S-adenosylmethionine
putrescine	A toxic diamine formed by putrefaction from the decarboxylation of arginine and ornithine.
s-adenosylmethionine	Physiologic methyl radical donor involved in enzymatic transmethylation reactions and present in all living organisms. It possesses anti-inflammatory activity and has been used in treatment of chronic liver disease. (From Merck, 11th ed)