Transcriptional Activators of Human Genes with Programmable DNA-Specificity
2011

Programmable Transcriptional Activators for Gene Expression

publication Evidence: moderate

Author Information

Author(s): Geiβler René, Scholze Heidi, Hahn Simone, Streubel Jana, Bonas Ulla, Behrens Sven-Erik, Boch Jens

Primary Institution: Martin-Luther-University Halle-Wittenberg

Hypothesis

Can synthetic TAL proteins with designed repeat compositions activate gene expression in human cells?

Conclusion

The study demonstrates that TAL proteins can effectively activate gene expression in human cells, especially when modified with a viral activation domain.

Supporting Evidence

  • TAL proteins were shown to activate gene expression in both plant and human cells.
  • The VP16 activation domain significantly enhanced transcriptional activity of TAL proteins in human cells.
  • Designed TAL proteins induced expression of endogenous human genes, albeit at lower levels than reporter constructs.

Takeaway

Scientists created special proteins that can turn on genes in human cells, which could help in biotechnology and medicine.

Methodology

The researchers developed synthetic TAL proteins using a modular cloning strategy and tested their ability to activate gene expression in human cell lines.

Limitations

The efficiency of TAL proteins in activating endogenous genes was lower than in reporter constructs, indicating potential challenges in gene regulation.

Statistical Information

P-Value

p≤0.005

Statistical Significance

p≤0.005

Digital Object Identifier (DOI)

10.1371/journal.pone.0019509

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