ALS — Brassica juncea

Summary

BJUB05G22290S (BjALS) encodes an acetolactate synthase (ALS) large subunit, a thiamine pyrophosphate-dependent enzyme that also exhibits pyruvate decarboxylase and 2-hydroxyacyl-CoA lyase activities. The protein binds TPP, FAD, and magnesium, and localises to the chloroplast stroma as part of the acetolactate synthase complex. In Indian mustard, this gene is associated with branched-chain amino acid biosynthesis, particularly valine anabolism, as well as fatty acid alpha-oxidation, meiosis, and response to herbicide. It is linked to heterosis, oleic acid content, photosynthetic rate, seed weight, and plant height. Related genes in other species are associated with herbicide resistance and sensitivity to imidazolinone and sulfonylurea herbicides, as well as carbohydrate, starch, and protein content.