Fiscal Year:
1987
Title:
DEVELOPMENT OF PROTEASE-DEFICIENT, GRAM-POSITIVE HOST
Agency:
HHS
Contract:
N/A
Award Amount:
$252,000.00
Abstract:
OUR LONG-TERM AIM IS TO DEVELOP A GRAM-POSITIVE ORGANISM FORTHE EXPRESSION AND SECRETION OF MEDICALLY AND INDUSTRIALLY USEFUL PROTEINS. ONE MAJOR OBSTACLE TO THE SUCCESSFUL DEVELOPMENT OF SUCH A SYSTEM IS THE PROTEOLYTIC DEGRADATION OF SECRETED PRODUCTS. SITE-DIRECTED DELETION MUTATIONS CONSTRUCTED IN VITRO HAVE ELIMINATED THE TWO MAJOR EXTRACELLULAR PROTEASES OF B. SUBTILIS. ALTHOUGH SIGNIFICANTLY DIMINISHED, PROTEOLYTIC DEGRADATION OF SECRETED PRODUCTS BY RESIDUAL PROTEASE REMAINS PROBLEMATIC. CHARACTERIZATION OF RESIDUAL PROTEASE ACTIVITY WILL BE PERFORMED PRELIMINARY TO CLONING AND SITE-DIRECTED DELETION OF ANY PROTEASE GENES IDENTIFIED IN THE PRESENT STUDY. MUTAGENESIS OF DOUBLE-PROTEASE-NEGATIVE STRAINS OF B. SUBTILIS, AND SCREENS OF OTHER BACILLUS SPECIES FOR PROTEASE-DEFICIENT STRAINS, WILL BE PERFORMED IN AN EFFORT TO DEVELOP A GRAM-POSITIVE HOST THAT DOES NOT DEGRADE SECRETORY PRODUCTS.
Principal Investigator:
Peter Blackburn
Principal Investigator
7188525353
Business Contact:
Small Business Information at Submission:
Applied Microbiology Inc.
#5 Brooklyn Navy Yard Brooklyn, NY 11205
EIN/Tax ID:
DUNS:
N/A
Number of Employees:
N/A
Woman-Owned:
No
Minority-Owned:
No
HUBZone-Owned:
No