Main Reaction: L-ornithine + L-Arginine >> Putrescine

Reference: PubMed ID: 10586504
Authors: Nakajima K, Oshita Y, Kaya M, Yamada Y, Hashimoto T
Title: Structures and expression patterns of two tropinone reductase genes from Hyoscyamus niger.
Published: 1999 Oct

L-ornithine + L-Arginine --> Putrescine