Conserved early steps of stemmadenine biosynthesis - Mohamed O. Kamileen; Yoko Nakamura; Marlen Sigmund; Radhika Keshan; Veit Gabe; Sarah Heinicke; Maritta Kunert; Benke Hong; Ryan Alam; Gyumin Kang; Lorenzo Caputi; Sarah E. O’Connor (Journal of Biological Chemistry, 2026)