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- W2006141036 abstract "Krox-20, a zinc finger transcription factor with similarity to Sp1, is likely to play an important role in the development of the vertebrate central nervous system. A knowledge of its molecular properties will help to understand its physiological functions. We have therefore performed a structure-function analysis of the protein to identify the regions involved in DNA-binding and transcriptional activation. Our data suggest that only the zinc fingers are required for high affinity, specific DNA-binding. Transcriptional activation was not affected by deletion of the C-terminal tail of the protein. In contrast, deletion of the N-terminal half, upstream of the zinc fingers, completely abolished transactivation without affecting DNA-binding or nuclear localization. Two transcriptional activation domains were identified in this region. They cooperate to establish full activity. They are rich in negatively-charged amino acids and are therefore may constitute acidic activation domains. Comparative analysis of the amino acid sequences of several zinc finger proteins belonging to the Krox-20 subfamily indicates that they contain acidic regions at similar locations within their N-terminal region, suggesting that the functional organization of these proteins has been conserved during evolution." @default.
- W2006141036 created "2016-06-24" @default.
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- W2006141036 date "1992-01-01" @default.
- W2006141036 modified "2023-10-14" @default.
- W2006141036 title "Mapping functional regions of the segment-specific transcription factor Krox-20" @default.
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- W2006141036 doi "https://doi.org/10.1093/nar/20.10.2485" @default.
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