C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
195/1.18, 195/1.
C12N 15/85 (2006.01) C07K 14/47 (2006.01) C07K 14/595 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01) C12N 9/72 (2006.01) C12N 15/58 (2006.01) C12N 15/66 (2006.01) C12N 15/70 (2006.01)
Patent
CA 2013453
ABSTRACT OF THE DISCLOSURE A recombinant vector suitable for industrially making an animal produce useful protein in its milk, which is con- constructed by extracting high molecular weight DNA from the bovine liver to prepare a chromosomal gene library, prepar- ing a synthetic DNA probe corresponding to the publicly known bovine .alpha.S1 casein chromosomal gene, screening a clone carrying bovine .alpha.S1 casein gene, confirming that the clone has a base sequence coincident with that of the publicly known bovine .alpha.S1 casein chromosomal gene, ligating human prourokinase cDNA with the promoter part and the intron 1 part of the gene, and then inserting the obtained plasmid into a suitable vector. A transgenic mouse prepared by using this recombinant vector secrete a considerable amount of human prourokinase as useful protein in its milk after delivery.
Ito Seiga
Katsuki Motoya
Sekine Susumu
Central Institute For Experimental Animals
Ito Seiga
Katsuki Motoya
Kyowa Hakko Kogyo Co. Ltd.
Sekine Susumu
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