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Isolation and characterization of full-length recombinant cattle PrPC protein
S L Kal'nov1, V B Grigor'ev, K P Alekseev
1D I Ivanovsky Institute of Virology, Russian Academy of Medical Sciences. kalnov@narvac.com
Bulletin of Experimental Biology and Medicine
|August 26, 2006
Summary
Researchers produced full-length Bos taurus PrPC protein using expression systems. The protein showed high specificity and antigenic activity with monoclonal antibodies, confirming its potential for diagnostic applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Immunology
Background:
- Prion protein (PrPC) is crucial in neurodegenerative diseases.
- Understanding PrPC structure and function requires reliable protein production.
- Developing specific antibodies is key for PrPC research and diagnostics.
Purpose of the Study:
- To produce full-length Bos taurus PrPC protein in eukaryotic and prokaryotic systems.
- To characterize the specificity and antigenic activity of the produced PrPC.
- To determine the cellular localization of recombinant PrPC.
Main Methods:
- Utilized EU- and prokaryotic expression systems for protein synthesis.
- Employed immunoblotting and indirect enzyme immunoassay for antibody-based detection.
- Conducted immunofluorescent analysis to visualize protein location in insect cells.
Main Results:
- Successfully obtained full-length Bos taurus PrPC in both expression systems.
- Demonstrated high specificity and antigenic activity of PrPC with anti-SAF-32 and VRQ-84 monoclonal antibodies.
- Confirmed membrane localization of recombinant PrPC in insect cells via immunofluorescence.
Conclusions:
- The produced full-length Bos taurus PrPC exhibits desirable antigenic properties.
- The recombinant PrPC is suitable for use with specific monoclonal antibodies.
- Immunofluorescence confirmed the correct membrane localization of the recombinant protein.
