Detection of dna damaging agents

C - Chemistry – Metallurgy – 12 – Q

Patent

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C12Q 1/68 (2006.01) C07K 14/395 (2006.01) C07K 14/435 (2006.01) C12N 5/12 (2006.01) C12N 15/81 (2006.01)

Patent

CA 2285703

Recombinant DNA molecules comprising a regulatory element that activates gene expression in response to DNA damage operatively linked to a DNA sequence that encodes a light emitting reporter protein, recombinant vectors containing such DNA molecules and cells containing the DNA molecules or recombinant vectors. A method of detecting for the presence of an agent that causes or potentiates DNA damage is also disclosed which involves subjecting the above-described cells to a putative DNA damaging agent and monitoring the expression of the light emitting reporter protein from the cells.

L'invention concerne des molécules d'ADN recombinant comprenant un élément régulateur qui active l'expression génique en réponse à un dommage à l'ADN lié de manière fonctionnelle à une séquence d'ADN codant une protéine-marqueur émettrice de lumière. L'invention concerne également des vecteurs recombinants contenant lesdites molécules d'ADN, ainsi que des cellules contenant lesdites molécules d'ADN ou des vecteurs recombinants. L'invention concerne en outre une méthode qui permet de détecter la présence d'un facteur pouvant causer ou favoriser un dommage à l'ADN. Pour réaliser cette méthode, on met lesdites cellules en présence d'un facteur susceptible de causer un dommage à l'ADN, puis on contrôle l'expression de la protéine-marqueur émettrice de lumière à partir desdites cellules.

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