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Gene and DNA Sequence
Record information and status
Record ID
Date of creation
2006-06-20 16:20 UTC (kirsty.mclean.consultant@cbd.int)
Date of last update
2021-02-12 17:43 UTC (austein.mcloughlin@cbd.int)
Date of publication
2021-02-12 17:43 UTC (austein.mcloughlin@cbd.int)

General information
Name of the gene or DNA sequence
Acetohydroxy acid synthase gene
Alternate Genetic Element Name (synonyms)
Acetolactate Synthase gene
Category of DNA sequence
  • Protein coding sequence
Is the gene / DNA sequence is a synthetic molecule?
Donor organism
Donor organism
Nicotiana tabacum - Tobacco, TOBAC
Characteristics of the protein coding sequence
Name of the protein expressed by the coding sequence
Acetohydroxy acid synthase
Biological function
Acetolactate synthase (ALS) catalyzes the first common step in the biosynthesis of the essential amino acids isoleucine, leucine, and valine.

Native ALS is normally inhibited by sulfonylurea herbicides. However a naturally occurring mutation causes the production of an altered form of ALS (designated SuRB) that is insensitive to inhibition by sulfonylurea herbicides.
Related trait(s) or use(s) in biotechnology

Records referencing this document (83)
83record(s) found
Country's Decision or any other Communication24 records
Modified Organism28 records
Risk Assessment31 records