title: Opposite patterns of expression of two Aspergillus nidulans xylanase genes with respect to ambient pH.
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.
authors.affiliation: Departamento de Biotecnología, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain.
authors.forename: A P
authors.initials: AP
authors.lastname: MacCabe
authors.forename: M
authors.initials: M
authors.lastname: Orejas
authors.forename: J A
authors.initials: JA
authors.lastname: Pérez-González
authors.forename: D
authors.initials: D
authors.lastname: Ramón
mesh_terms: D001233:Aspergillus nidulans / Q000201:enzymology / Q000235:genetics*; D001483:Base Sequence; D003470:Culture Media; D043364:Endo-1,4-beta Xylanases; D005656:Fungal Proteins; D015966:Gene Expression Regulation, Fungal; D005800:Genes, Fungal; D006863:Hydrogen-Ion Concentration; D008969:Molecular Sequence Data; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism; D014158:Transcription, Genetic; D043325:Xylan Endo-1,3-beta-Xylosidase; D014994:Xylose / Q000378:metabolism; D014995:Xylosidases / Q000235:genetics*; D016335:Zinc Fingers
chemical_list: D003470:Culture Media; D005656:Fungal Proteins; C092394:PacC protein, Aspergillus; D014157:Transcription Factors; D014994:Xylose; D014995:Xylosidases; D043325:Xylan Endo-1,3-beta-Xylosidase; D043364:Endo-1,4-beta Xylanases