A novel protease produced by Aeromonas caviae was purified and characterized. The molecular weight of the protease (AP19) was estimated as 19 kDa on SDS-polyacrylamide gel electrophoresis. The protease activity was not inhibited completely by heating at 100 degrees C for 15 min. The proteolytic activities were inhibited by metalloprotease inhibitor. The N-terminal amino acid sequence of AP19 was VTASVSFSGRCTN. AP19 did not activate Aeromonas proaerolysin, and did not show fluid accumulation in the rabbit intestinal loop test. A high concentration of the protease showed cytotoxic activity against Vero cells.
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| http://dx.doi.org/10.1016/j.femsle.2004.06.025 | DOI Listing |
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