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Élément génétique
(GENE)
published: 24 sept. 2012
last updated: 15 févr. 2021
Acetohydroxy acid synthase gene terminator
EN
-
Acetolactate Synthase (ALS) gene terminatorEN
T-ahas-ARATH
EN
Terminateur
Non
-
BCH-ORGA-SCBD-12098-4 Organisme Arabidopsis thaliana (Thale cress, Mouse-ear cress, Arabidopsis, ARATH)Plantes
FR
AHAS is an essential enzyme for many organisms as it catalyzes the first step in the biosynthesis of the branched-chain amino acids valine, isoleucine, and leucine.
A common mutant form of the ahas gene was isolated from a herbicide-resistant Arabidopsis thaliana which differs from the wild type gene by only a single base pair. A "G" to "A" point mutation results in a single amino acid substitution in which the serine residue at position 653 is replaced by asparagine (S653N)
Tests using the mutant isoform of the ahas gene showed that it confers tolerance to sulfonylurea herbicides in plants. The ahas mutant isoform may, therefore, be used as a selectable marker in transgenic plants.
EN
A common mutant form of the ahas gene was isolated from a herbicide-resistant Arabidopsis thaliana which differs from the wild type gene by only a single base pair. A "G" to "A" point mutation results in a single amino acid substitution in which the serine residue at position 653 is replaced by asparagine (S653N)
Tests using the mutant isoform of the ahas gene showed that it confers tolerance to sulfonylurea herbicides in plants. The ahas mutant isoform may, therefore, be used as a selectable marker in transgenic plants.
| Type de fichier | Champs | Fichier(s) : | |
|---|---|---|---|
| Organisme vivant modifié | Élément(s) génétique(s) introduit(s) ou modifié(S) | 3 | |
| Organisme vivant modifié | Construction d'éléments génétiques | 3 | |
