Gibberellin A12

Gibberellin A₁₂ is present as a free compound in the testa of maturing Sechium edule seeds, and is absent from the embryo and endosperm of these seeds^[1].
Gibberellin A₁₂ (0.064-1.0 mM MVA; 2-4 h) is synthesized from MVA by cell-free extracts from Cucurbita maxima liquid endosperm with an apparent K_m of 0.4 mM MVA, achieving up to 7% incorporation of MVA into GA₁₂^[2].
Gibberellin A₁₂ exists in developing Pisum sativum L. seeds, and can be enzymatically synthesized from mevalonic acid with definite specific activity and production efficiency^[3].
Gibberellin A12 (0.2 μCi; 1-24 h) is rapidly and exclusively metabolized by cotyledons from 20-day-old Pisum sativum L. G2 seeds to 13-hydroxylated gibberellins^[4].
Gibberellin A12 (0.2 μCi; 3-24 h) is slowly metabolized by seed coats from 20-day-old Pisum sativum L. G2 seeds to both 13-hydroxylated and non-13-hydroxylated gibberellins^[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.