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Updated: Jun 20, 2026
09:03
HeLa Based Cell Free Expression Systems for Expression of Plasmodium Rhoptry Proteins
Published on: June 10, 2015
[Transient expression in microplasmodia of Physarum polycephalum]
Shide Liu1, Caixia Cheng, Ziyang Lin
1Shenzhen Key Laboratory of Microbial and Genetic Engineering, College of Life Sciences, Shenzhen University, Shenzhen 518060, China.
Sheng Wu Gong Cheng Xue Bao = Chinese Journal of Biotechnology
|September 26, 2009
Summary
Researchers developed a new transient expression system for Physarum polycephalum, enabling red fluorescent protein (RFP) and PELF1-RFP expression. This system is ideal for studying cell cycle dynamics in this eukaryotic model organism.
Area of Science:
- Cell Biology
- Molecular Biology
- Biotechnology
Context:
- Physarum polycephalum serves as a valuable eukaryotic model for cell cycle research.
- Existing methods lack a compatible transient expression system for Physarum polycephalum plasmodia.
Purpose:
- To develop and validate a novel transient expression system for Physarum polycephalum.
- To enable the expression of specific proteins, such as red fluorescent protein (RFP) and PELF1-RFP, within Physarum polycephalum plasmodia.
Summary:
- Constructed plasmids pXM1, pXM2, and pXM2-pelf1 using Physarum polycephalum's ardC actin promoter and terminator.
- Optimized electroporation parameters (40 V/cm, 1 A, 70 µs) for efficient transient expression.
- Observed optimal RFP and PELF1-RFP expression between 24-48 hours post-electroporation, with PELF1-RFP accumulating in the nucleus.
Impact:
- Establishes a functional transient expression system for Physarum polycephalum.
- Facilitates future research into gene function and protein localization in this organism.
- Provides a foundation for advanced genetic manipulation studies in Physarum polycephalum.
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