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Updated: Jul 2, 2026
11:24
Direct Protein Delivery to Mammalian Cells Using Cell-permeable Cys2-His2 Zinc-finger Domains
Published on: March 25, 2015
[Engineering and expression of sequence-specific DNA-binding zinc finger protein]
Yong Wei1, Dajun Ying, Chunli Hou
1Key Laboratory of Biomechanics and Tissue Engineering, Chongqing, China.
Summary
This study successfully designed and expressed an artificial zinc finger protein (ZFP) targeting the A20 gene. Bioinformatics tools enabled the creation of engineered DNA-binding proteins, proving the feasibility of this design approach.
Area of Science:
- Molecular Biology
- Bioinformatics
- Protein Engineering
Context:
- The A20 gene plays a crucial role in inflammatory and immune responses.
- Developing targeted gene regulation tools is essential for biological research and therapeutic applications.
- Zinc finger proteins (ZFPs) offer a versatile platform for site-specific DNA binding.
Purpose:
- To design and create a novel, artificial zinc finger DNA-binding protein (ZFP) specifically targeting the A20 gene promoter.
- To utilize bioinformatics tools for predicting and validating ZFP binding sites and sequences.
- To express the designed ZFP in a prokaryotic system (Escherichia coli) for experimental validation.
Summary:
- Bioinformatic analysis of the A20 gene promoter identified target DNA sequences.
- The amino acid sequence for a ZFP was designed using the ZF Tools Server to bind the A20 target site.
- Homology modeling was performed, and a prokaryotic expression vector (pTYB11-ZFP) was constructed and expressed, yielding the artificial ZFP.
Impact:
- Demonstrates the feasibility of designing engineered artificial ZFPs using bioinformatics.
- Provides a foundation for developing targeted gene modulation strategies for the A20 gene.
- Highlights the power of computational approaches in protein engineering and synthetic biology.
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