C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 15/57 (2006.01) A61K 39/395 (2006.01) C07H 5/10 (2006.01) C07H 21/04 (2006.01) C12N 1/21 (2006.01) C12N 9/52 (2006.01) C12N 15/31 (2006.01) C12N 15/76 (2006.01)
Patent
CA 2090463
2090463 9300925 PCTABS00019 The isolation and characterization of a novel polypeptide, designated Protease X, identified while screening for proteases exported into the media by Streptomyces lividans, is described. Also disclosed is the DNA sequence of the gene encoding this protein. The polypeptide was found to have proteolytic activity on the substrate succinyl-ala-ala-pro-phe-pNitroanilide, also cleaved by chymotrypsin, subtilisin, and cathepsin G. In addition, methods for purifying the protease and raising antibodies against it are reported. Lastly, the generation of a S. lividans strain deficient in this proteolytic activity is reported. Such a strain may prove useful as a host for production of heterologous protein products.
Amgen Inc.
Ridout & Maybee Llp
LandOfFree
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