CYP93C3 — Glycine max

Summary

GLYMA_13G173500V4 (symbol CYP93C3, preferred name GmCYP93C3) on soybean chromosome 13 encodes a cytochrome P450 family protein with 2-hydroxyisoflavanone synthase, flavanone 2-hydroxylase, naringenin 2-hydroxylase, and 3,9-dihydroxypterocarpan 6a-hydroxylase activities, along with monooxygenase and oxidoreductase functions requiring heme and iron binding. The gene is associated with isoflavonoid, flavone, phytoalexin, lignan, and luteolin biosynthesis, as well as hormone metabolism, response to cGMP, ethene metabolism, salicylic acid metabolism, and regulation of flavonoid and hormone levels. It localizes to the endoplasmic reticulum membrane and intracellular membrane-bounded organelles. Associations with seed coat color, protein content, germination rate, and drought tolerance have been noted. Studies of related genes in other species link the family to flavonoid content, plant height, harvest index, fruit dry weight, soluble protein content, and salt tolerance.