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Transient Expression and Cellular Localization of Recombinant Proteins in Cultured Insect Cells
Published on: April 20, 2017
Expression of chicken interleukin-2 in insect cells
Min-Jie Cao1, Guo-Ping Wu, Chuan Guo
1College of Biological Engineering, Jimei University, Jimei, Xiamen, 361021, China. caomj@suntar.com
Biochemistry. Biokhimiia
|December 13, 2005
Summary
Chicken interleukin-2 (ChIL-2) protein was successfully expressed and found to be soluble. Further analysis confirmed that ChIL-2 is an N-glycosylated protein, a crucial finding for understanding avian immune responses.
Area of Science:
- Immunology
- Molecular Biology
- Protein Expression
Background:
- Chicken interleukin-2 (ChIL-2) plays a role in avian immune responses.
- Understanding the post-translational modifications of ChIL-2 is essential for its functional characterization.
Purpose of the Study:
- To express full-length chicken interleukin-2 (ChIL-2) protein using a recombinant baculovirus/Sf9 insect cell system.
- To investigate the post-translational modifications, specifically glycosylation, of the expressed ChIL-2 protein.
Main Methods:
- Recombinant baculovirus/Sf9 insect cell expression system for protein production.
- SDS-PAGE and Western blot analysis for protein characterization.
- N-endoglycosidase F treatment to assess N-glycosylation.
Main Results:
- Soluble full-length ChIL-2 protein was successfully expressed at approximately 12 microg/ml.
- Expressed ChIL-2 showed two bands (22 and 20 kD) on SDS-PAGE and Western blot.
- N-endoglycosidase F treatment removed the 22 kD band, indicating N-glycosylation.
Conclusions:
- Chicken interleukin-2 (ChIL-2) is an N-glycosylated protein.
- The recombinant baculovirus system is effective for expressing functional ChIL-2.
- This study provides critical insights into the molecular nature of ChIL-2.
