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TATA binding protein (TBP) [1, 2] is a key regulator of RNA polymerase transcription. It binds to core promoters, often in large multiprotein complexes, and nucleates RNA polymerase II (Pol II) transcription initiation. In addition to the previously described TBP-like factor present in metazoans (TLF/TRF2/TRP/TLP) [3–6], we describe a third, vertebrate-specific member of the TBP protein family from...
We provide evidence that a prokaryotic insertion sequence (IS) element is active in a vertebrate system. The transposase of Escherichia coli element IS30 catalyzes both excision and integration in extrachromosomal DNA in zebrafish embryos. The transposase has a pronounced target preference, which is shown to be modified by fusing the enzyme to unrelated DNA binding proteins. Joining the transposase...
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