C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 15/55 (2006.01) A61K 38/46 (2006.01) A61K 47/48 (2006.01) C12N 1/21 (2006.01) C12N 9/82 (2006.01) C12N 9/96 (2006.01) C12N 15/63 (2006.01) C12N 15/70 (2006.01)
Patent
CA 2652718
The invention provides a recombinant Escherichia coli host cell for producing an Escherichia coli L-asparaginase II enzyme. The host cell includes an Escherichia coli chromosome and at least one copy of a recombinant extrachromosomal vector, wherein the recombinant extrachromosomal vector encodes the L-asparaginase II enzyme, wherein the host cell chromosome also encodes the same L-asparaginase II enzyme, and wherein the host chromosome does not encode any other isoform of L-asparaginase II.
L'invention concerne l'utilisation d'une cellule hôte recombinante d'Escherichia coli pour l'obtention d'une enzyme L-asparaginase II d'Escherichia coli. Cette cellule hôte comprend un chromosome d'Eschericia coli et au moins une copie d'un vecteur extrachromosomique recombinant, vecteur qui code pour l'enzyme L-asparaginase II. Le chromosome de cellule hôte code également pour l'enzyme L-asparaginase II, mais ne code pas tout autre isoforme de L-asparaginase II.
Filpula David R.
Wang Maoliang
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Defiante Farmaceutica S.a.
Enzon Pharmaceuticals Inc.
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