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An Aspergillus nidulans nuclear protein, AnCP, involved in enhancement of Taka-amylase A gene expression, binds to the CCAAT-containing taaG2, amdS, and gatA promoters

Molecular and General Genetics MGG volume 254, pages 119–126 (1997)Cite this article

Abstract

Using AnCP (Aspergillus nidulans CCAAT-binding protein) as a CCAAT-specific binding factor model, the possibility that one factor is able to recognize CCAAT sequences in several different genes in A.␣nidulans was examined. DNase I protection analysis showed that AnCP specifically bound to CCAAT sequence-containing regions comprising 21 to 36 bp of the taa, amdS and gatA genes. Furthermore, replacement of the CCAAT sequence with CGTAA was found to abolish the binding of AnCP and to have an inhibitory effect on taa promoter activity. This clearly demonstrates a positive function of the CCAAT element. However, amylase was induced by starch and repressed by glucose in a CCAAT-box disruptant, as in wild-type cells.

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Affiliations

  1. Department of Applied Biological Sciences, Faculty of Agriculture, Nagoya University, Nagoya 464-01, Japan, JP

    M. Kato, A. Aoyama, F. Naruse, T. Kobayashi & N. Tsukagoshi

Authors
  1. M. Kato
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  2. A. Aoyama
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  3. F. Naruse
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  4. T. Kobayashi
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  5. N. Tsukagoshi
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Received: 28 June 1996 / Accepted: 7 October 1996

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Kato, M., Aoyama, A., Naruse, F. et al. An Aspergillus nidulans nuclear protein, AnCP, involved in enhancement of Taka-amylase A gene expression, binds to the CCAAT-containing taaG2, amdS, and gatA promoters. Mol Gen Genet 254, 119–126 (1997). https://doi.org/10.1007/s004380050399

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  • DOI: https://doi.org/10.1007/s004380050399

  • Key wordsAspergillus 
  •  Taka-amylase A 
  •  CCAAT 
  •  Nuclear protein 
  •  Footprint