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[The lysozyme of Ixodes persulcatus ticks]
Abstract:
Using a technique based on specific enzyme sorption by chitin (beta-1-4-N-acetylglucosamine), lysozyme with a molecular mass of 15,000 has been isolated from homogenates of the Ix. persulcatus ticks. Micrococci and staphylococci proved to be most sensitive to lysozyme from the Ix. persulcatus ticks, while E. coli and Salmonella were less sensitive. The minimum inhibitory concentration of lysozyme from Ix. persulcatus was 2-4 times lower than that of egg lysozyme. Lysozyme from the Ix. persulcatus ticks is resistant to heating in acid medium and loses some of its activity in alkaline medium. The loss of the activity in the both media is somewhat lower than that of egg lysozyme in analogous conditions.
Insights
Researchers isolated tick lysozyme (Ix. persulcatus) effective against bacteria. This tick lysozyme showed higher potency and stability than egg lysozyme, offering potential antimicrobial applications.
Area of Science:
- Biochemistry
- Microbiology
- Entomology
Background:
- Lysozymes are enzymes with antimicrobial properties found in various organisms.
- Ixodes persulcatus ticks are known vectors of diseases, and understanding their biochemical components is crucial.
Purpose of the Study:
- To isolate and characterize lysozyme from Ixodes persulcatus ticks.
- To compare the antibacterial activity and stability of tick lysozyme with egg lysozyme.
Main Methods:
- Enzyme sorption by chitin (beta-1-4-N-acetylglucosamine) was used for isolation.
- Minimum inhibitory concentrations (MICs) were determined against various bacteria.
- Stability was assessed by heating in acidic and alkaline media.
Main Results:
- Lysozyme (15,000 molecular mass) was successfully isolated from Ix. persulcatus ticks.
- Tick lysozyme exhibited potent activity against Micrococci and Staphylococci, with lower MICs than egg lysozyme.
- Tick lysozyme demonstrated greater resistance to acidic conditions and comparable stability in alkaline conditions compared to egg lysozyme.
Conclusions:
- Ixodes persulcatus ticks harbor a potent lysozyme with enhanced antibacterial efficacy.
- Tick lysozyme presents superior stability, particularly in acidic environments, compared to egg lysozyme.
- This tick-derived lysozyme holds promise as a natural antimicrobial agent.