The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2013
Filed:
Aug. 22, 2008
Daniel Scherman, Paris, FR;
Corinne Marie, Yerres, FR;
Daniel Scherman, Paris, FR;
Corinne Marie, Yerres, FR;
Abstract
The invention relates to a mutated cell such as a bacteria or yeast in which the thyA gene coding thymidylate synthase includes a nonsense codon, preferably the amber codon, said nonsense codon replacing a codon coding an amino acid and inducing the interruption of thyA gene translation and the auxotrophy of the cell for the thymidine. Advantageously, the endA gene coding the endonuclease 1 and/or the recA gene coding the recombinase is inactivated in said mutated cell. The invention also relates to an expression plasmid including a transgene and a sequence of a suppressing ARM structural gene containing an anticodon that can be paired with the nonsense codon of the thyA gene and is specific of an amino acid capable of restoring the translation of the mutated thyA gene and thereby obtaining a protein of the wild or mutated type having a thymidylate synthase activity. The invention also relates to a method for the multiplication of the expression plasmid.