Three alkaline proteases of Bacillus spp. JB411.

  • Lee, Oh-Hyoung (Department of Biology, Mokpo National University) ;
  • Seong, Chi-Nam (Department of Biology, Sunchon National University) ;
  • Park, Gi-Duk (Department of Pharmacy, College of Pharmacy, Chosun University) ;
  • Kim, An-Na (Department of Pharmacy, College of Pharmacy, Chosun University) ;
  • Han, Ji-Man (Department of Pharmacy, College of Pharmacy, Chosun University) ;
  • Lee, Hyo-Jung (Department of Pharmacy, College of Pharmacy, Chosun University) ;
  • Kim, Sul-Hee (Department of Pharmacy, College of Pharmacy, Chosun University) ;
  • Yoo, Jin-Cheol (Department of Pharmacy, College of Pharmacy, Chosun University)
  • Published : 2002.10.01

Abstract

Three alkaline proteases. designated JB-1. JB-2, and JB-3, are extracellular enzymes produced by Bacillus spp. JB411 which was isolated korean soil. They were separated by DEAE-sepharose CL-6B gel. and further purified using ammonium sulfate precipitation. ultra membrane filtration. and Ultrogel AcA gel filtration. The optimun pH values of proteases IB-1. JB-2. and JB-3. were shown to be 9.5. 9.5 and 7.5. respectively. All three proteases were stable in the pH range of 5-11. (omitted)

Keywords