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Opposite patterns of expression of two Aspergillus nidulans xylanase genes with respect to ambient pH
A P MacCabe1, M Orejas, J A Pérez-González
1Departamento de Biotecnología, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain.
Journal of Bacteriology
|March 12, 1998
Abstract:
The Aspergillus nidulans xylanase genes xlnA and xlnB are subject to regulation by ambient pH via the zinc finger transcription factor PacC. In the presence of D-xylose, xlnA is expressed under conditions of alkaline ambient pH while xlnB is expressed at acidic ambient pH. These data have been confirmed for acidity- and alkalinity-mimicking A. nidulans mutants.