Part:BBa_J176013
VP64
Tetrameric VP16 transcription activator domain
Usage and Biology
VP64 is a transcriptional activator composed of four tandem copies of VP16 (Viral Protein 16), which is derived from the herpes simplex virus. When fused to another protein domain that can interact directly with a gene (e.g., a DNA binding domain), VP64 acts as a strong transcriptional activator.
Characterization
VP64 activity is sensitive to promoter proximity.
In our hands, VP64 activity is maximized when it is targeted to DNA sequences that are ~40-80 base pairs away from a minimal promoter. When fused to the Gal4 DNA binding domain and targeted to Gal (UAS) DNA elements that are assembled immediately adjacent to the HSVTkTATA minimal promoter BBa_J176011, we observe weak activation, and perhaps repression, of a fluorescent reporter gene. In contrast, when a small spacer is inserted between the Gal4 binding sites and the promoter, reporter gene activity greatly increases.
(Data will be posted soon)
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
//chassis/eukaryote/human
//proteindomain/activation
chassis | mammalian cells |
function | transcription |
uniprot | P06492 |