This class holds pathways for the biosynthesis of putrescine
Amines and Polyamines Biosynthesis
Note: This class is a variant class, i.e. its purpose is to group together a set of variant pathways. Variant pathways are those that accomplish roughly the same biological function, such as degradation of a given starting material, or biosynthesis of an end product. The variant pathways may or may not share any common reactions.
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