Spermine Biosynthesis

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© IUBMB 2003

Note 1: All compounds are shown protonated as expected under physiological conditions.

Note 2: EC, sym-norspermidine synthase, acts similarly twice starting with propane-1,3-diamine.

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S-adenosyl-L-methionine biosynthesis
ornithine biosynthesis
EC spermidine synthase
EC spermine synthase
EC ornithine decarboxylase
EC adenosylmethionine decarboxylase
EC D-ornithine/D-lysine decarboxylase
EC ornithine racemase