Expression of the
Aspergillus nidulans xylanase gene
xlnC is subject to regulation by carbon catabolite repression and ambient pH. In the presence of glucose,
xlnC transcription is repressed by the zinc finger transcription factor CreA. These data have been confirmed using the extremely derepressed mutant
creA
d
30. Expression of
xlnC is elevated at alkaline ambient pH and also in alkalinity-mimicking
A. nidulans mutants.
Aspergillus nidulans
- carbon catabolite repression - CreA - pH regulation -
xlnC
- xylanase X34