AMT1 — Phaseolus vulgaris

Summary

PHAVU_001G241700 (PvAMT1) on French bean chromosome 1 encodes an anthranilate synthase/aminodeoxychorismate synthase with ADC synthase and chorismate-binding domains, conferring both anthranilate synthase and aminodeoxychorismate synthase activities. The gene is associated with tryptophan formation, regulation of auxin biosynthetic process, PABA and folate biosynthesis, response to bacteria, ethylene, wounding and thirst. It localises to the chloroplast stroma, cytoplasm and anthranilate synthase complex. Associations include adventitious rootless and lateral root formation, root growth inhibition, ethylene-insensitive roots, pale reticulated adult plants, ammonium uptake, sulfur nutrition response, PIN2 endocytosis, alpha-methyltryptophan resistance, and suppression of the superoot2-1 phenotype. Studies of related genes in other species link the family to defense response, ammonium transport, primary root elongation and phytoalexin biosynthesis.