2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Acetolactate Synthase (ALS)

Acetolactate Synthase (ALS)

Acetohydroxyacid synthase

Acetohydroxyacid synthase (ALS), a thiamine diphosphate-dependent enzyme, can condense either two pyruvate molecules to form acetolactate for synthesizing Lvaline and L-leucine or pyruvate with 2-ketobutyrate to form acetohydroxybutyrate for synthesizing L-isoleucine. Because the key reaction catalyzed by acetohydroxyacid synthase in the biosynthetic pathways of branched-chain amino acids (valine, leucine, and isoleucine) exists in plants, fungi, archaea, and bacteria, but not in animals, acetohydroxyacid synthase becomes a potential target for developing novel herbicides and antimicrobial compounds.

Acetolactate Synthase (ALS) Related Products (24):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-126987R
    Mesosulfuron-methyl (Standard)
    		Inhibitor
    Mesosulfuron-methyl (Standard) is the analytical standard of Mesosulfuron-methyl. This product is intended for research and analytical applications. Mesosulfuron-methyl is a sulfonylurea herbicide that inhibits acetolactate synthase (ALS) and is used in research for post-emergence control of ryegrass and Avena spp. (wild oat) in wheat fields.
    Mesosulfuron-methyl (Standard)
  • HY-170920
    Herbicide safener-4
    		Inhibitor
    Herbicide safener-4 (Compound I-15) is a Herbicide safener, improving the herbicide resistance of crops without reducing the herbicidal effect on targeted weed species. Herbicide safener-4 competitively binds to the ALS active site with Mesosulfuron-methyl (HY-126987). Herbicide safener-4 enhances GSH (HY-D0187), GST, CYP450, POD, SOD and ALS activity in plants.
    Herbicide safener-4
  • HY-B0869AR
    Bispyribac sodium (Standard)
    Bispyribac (sodium) (Standard) is the analytical standard of Bispyribac sodium (HY-B0869A). This product is intended for research and analytical applications. Bispyribac sodium is a selective, orally active, systemic and post-emergence herbicide. Bispyribac sodium reduces SOD levels and inhibits ALS activity. Bispyribac sodium blocks the biosynthesis of branched-chain amino acids, resulting in growth retardation, chlorosis and necrosis of weeds. Bispyribac sodium exerts herbicidal activity against grass, sedge and broadleaf weeds in rice fields. Bispyribac sodium is hepatotoxic and genotoxic.
    Bispyribac sodium (Standard)
  • HY-B0865R
    Pyrazosulfuron-ethyl (Standard)
    Pyrazosulfuron-ethyl (Standard) is the analytical standard of Pyrazosulfuron-ethyl. This product is intended for research and analytical applications. Pyrazosulfuron-ethyl, one of the acetolactate synthase inhibiting herbicides in the sulphonylurea family, has been widely used to control weed growth in commercial cereal, soybean, and vegetable fields.
    Pyrazosulfuron-ethyl (Standard)