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  • 1
    Electronic Resource
    Electronic Resource
    Two tobacco DNA-binding proteins with homology to the nuclear factor CREB (1989)
    [s.l.] : Nature Publishing Group
    Nature 340 (1989), S. 727-730 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have reported previously that tobacco nuclear extract contains a factor, ASF-1, that binds to the as-1 sequence of the 35S promoter13. Mutations in the TGACG motifs of as-1 leads to a drastic decrease in this binding activity. The results shown in Fig. la confirmed these findings and show that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/340727a0
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  • 2
    Electronic Resource
    Electronic Resource
    The tobacco transcription activator TGA1a binds to a sequence in the 5′ upstream region of a gene encoding a TGA1a-related protein (1991)
    Springer
    Molecular genetics and genomics 229 (1991), S. 181-188 
    Details
    ISSN: 1617-4623
    Keywords: DNA-binding protein ; bZIP protein ; ASF-1 ; Trans-acting factor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have isolated and characterized a tobacco gene, designated G13, encoding a leucine zipper DNA-binding protein related to the transcription activator TGA1a. The G13 coding region is divided into eight exons and the amino acid sequence of the encoded protein (PG13) shows 76% homology to TGA1a. Their putative DNA-contacting regions (basic domains) are identical and they both bind to the same target sequences in vitro. By contrast, some differences are apparent between these proteins at the carboxyl end of the dimerization region (leucine zipper). The basic and leucine zipper domains are encoded on separate small exons. Analysis by DNAse I footprinting, gel shift and competition experiments revealed that TGA1a and PG13 synthesized in Escherichia coli, and the tobacco nuclear factor ASF-1 all bind to at least one site in the 5′ upstream region of G13. The presence of a TGA1a binding site in the upstream region of a TGA1 a-related gene suggests that transcription of this gene is autoregulated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00272154
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    Paper (German National Licenses)
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