Mycobacterial genus-specific DNA probe and its expressed product

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

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435 912, 4353201, 536 221, C12Q 168, C12P 1934, C07H 2104, C12N 1500

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active

057766924

ABSTRACT:
Recombinant clone pMptb #48 expressing a 36k M. paratuberculosis antigen is provided that provides a more sensitive and discriminating test than those in which crude antigens have been used. A mycobacterial genus-specific DNA probe corresponding to a 1.4 kb BamH1-DNA insert in pMptb #48 is also provided. The 1.4 kb insert includes the entire DNA coding sequence for an M. paratuberculosis 36k protein. There is also provided methods for serologically testing specimens which include the use of recombinant clone pMptb #48 and/or the p36k protein and/or fragments of the p36k protein. Also provided are methods for identifying mycobacterial infections using a probe corresponding to the 1.4 kb DNA sequence shown in FIG. 4, the coding portion of the 1.4 kb DNA sequence, or fragments thereof.

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