Methods for large scale production of recombinant...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/62 (2006.01) C07K 14/47 (2006.01) C07K 19/00 (2006.01) C12N 9/64 (2006.01) C12N 9/72 (2006.01) C12N 15/12 (2006.01) C12N 15/57 (2006.01) C12N 15/58 (2006.01) C12N 15/70 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2428642

The invention belongs to the field of thrombolysis and of tissue plasminogen activator (tPA) derivative production in prokaryotic cells. The invention relates to methods for the production of a recombinant DNA-derived tPA, a variant thereof or a (Kringle 2 Serine) K2S molecule or a variant thereof in prokaryotic cells, wherein said tPA or K2S or variant is secreted extracellularly as an active and correctly folded protein, and the prokaryotic cell contains and expresses a vector comprising the DNA coding for said tPA or K2S or variant operably linked to the DNA coding for the signal peptide OmpA. The invention further relates to specific K2S derivatives obtainable by said method. The invention further relates to said DNA molecules and the use of said DNA molecules in said methods.

L'invention concerne le domaine de la thrombolyse et de la production de dérivés d'activateur de plasminogène de tissu (tPA) dans des cellules procaryotiques. Cette invention concerne des procédés de production d'un tPA dérivé d'ADN recombinant, d'un variant de celui-ci (Kringle 2 Sérine) ou une molécule K2S ou d'un variant de celle-ci dans des cellules procaryotiques, dans lesquelles ledit tPA ou la K2S ou le variant sont sécrétés extracellulairement comme une protéine correctement pliée et active. La cellule procaryotique contient et exprime un vecteur comprenant l'ADN codant ledit tPA ou la K2S ou le variant lié de manière fonctionnelle à l'ADN codant le peptide signal OmpA. L'invention concerne également des dérivés de K2S spécifiques obtenus grâce audit procédé. L'invention concerne enfin lesdites molécules d'ADN et l'utilisation desdites molécules d'ADN dans lesdits procédés.

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