HPPD VARIANTS AND METHODS OF USE

In the present invention, HPPD enzymes and plants containing them showing a full tolerance against several classes of HPPD-inhibitors are described. A set of HPPD enzymes have been designed which have either no or only a significantly reduced affinity to HPPD inhibitors and, at the same time, the ra...

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Hauptverfasser: DUBALD, MANUEL, ARMSTRONG, ROXANNE, POREE, FABIEN, PETERS, CHERYL
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ARMSTRONG, ROXANNE
POREE, FABIEN
PETERS, CHERYL
description In the present invention, HPPD enzymes and plants containing them showing a full tolerance against several classes of HPPD-inhibitors are described. A set of HPPD enzymes have been designed which have either no or only a significantly reduced affinity to HPPD inhibitors and, at the same time, the rate of dissociation of the HPPD inhibitors of the enzyme is increased to such an extent that the HPPD inhibitors no longer act as slow-binding or slow, tight-binding inhibitors but, instead of this, have become fully reversible inhibitors. In particular, isolated polynucleotides encoding HPPD inhibitor tolerance polypeptides are provided. Additionally, amino acid sequences corresponding to the polynucleotides are encompassed. Cette invention concerne des enzymes HPPD et des plantes les contenant qui présentent une tolérance totale envers plusieurs classes d'inhibiteurs de HPPD. Un ensemble d'enzymes HPPD a été conçu, lesdites enzymes ne présentant aucune affinité ou seulement une affinité réduite de manière significative envers les inhibiteurs de HPPD et, simultanément, la vitesse de dissociation desdits inhibiteurs de HPPD est augmentée dans une mesure telle qu'ils n'agissent plus comme inhibiteurs à interaction lente ou comme des inhibiteurs à interaction lente et forte affinité mais, plutôt, comme des inhibiteurs entièrement réversibles. En particulier, des polynucléotides isolés codant pour des polypeptides de tolérance aux inhibiteurs de HPPD sont décrits. De plus, des séquences d'acides aminés correspondant auxdits polynucléotides sont englobées dans la présente invention.
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subjects BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
title HPPD VARIANTS AND METHODS OF USE
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