A novel protein and process for preparing the same

A - Human Necessities – 61 – K

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Details

A61K 38/18 (2006.01) C07K 14/51 (2006.01) C12N 15/18 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2216741

A protein comprising an amino acid sequence represented by SEQ ID NO: 1 in the Sequence Listing and originating in human MP52 and the dimer of this protein. This dimer protein can be obtained by constructing a plasmid containing a DNA wherein a codon encoding methionine is added to the 5' end of a DNA sequence encoding the above- mentioned aminoacid sequence, transforming Escherichia coli by this plasmid, incubating the E. coli transformant, solubilizing and purifying the obtained inclusion body to thereby give a monomer protein, and then renaturing the obtained monomer protein into the dimer followed by purification. This dimer protein is useful in the treatment of cartilage and bone diseases. Image

La présente invention concerne une protéine comportant une séquence d'acide aminé représentée par le n DEG d'identification SEQ 1 dans la liste de séquences, et ayant son origine dans la MP52 humaine, et le dimère de cette protéine. Cette protéine à dimère peut être obtenue par recombinasion d'un plasmide contenant un ADN dans lequel un codon codant pour la méthionine est ajouté à l'extrémité 5' d'une séquence d'ADN codant la séquence précitée d'acide aminé, transformation d'Escherichia coli par ce plasmide, incubation du transformant de l'E. Coli, solubilisation et purification du corps d'inclusion obtenu pour donner une protéine monomère, puis renaturation de la protéine monomère obtenue, donnant le dimère, suivie de la purification. Cette protéine à dimère est utile dans le traitement d'affections touchant les cartilages et les os.

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