Cloning of a novel gene encoding a C2H2 zinc finger protein that alleviates sensitivity to abiotic stresses in Aspergillus nidulans

J D O Neil, M Bugno, Michele Stanley, J B Barham-Morris, N A Woodcock, D J Clement, N J W Clipson, M P Whitehead, D A Fincham, P Hooley

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Abstract

We report the cloning and sequencing of a DNA fragment encoding a putative C.,H, zinc finger protein from Aspergillus nidulans. The gene was isolated by complementation cloning of a salt sensitive phenotype of the A. nidulans sltA1% mutant. A 3.8 kb Pst1 fragment that restored wild type salt tolerance contained one large open reading frame of 2202 bp. The predicted protein (StzA) from this reading frame comprises 698 amino acids and has three Zinc fingers along with a putative transcriptional activation domain rich in acidic amino acids. The corresponding sequence from a sltA1 mutant contains a premature STOP codon resulting in loss of the putative transcriptional activator in the C-terminal region. The Zinc fingers show conserved motifs with a number of transcription factors including CreA from A. nidulans and the human Wilm's tumour Susceptibility protein WT-1.
Original languageEnglish
Pages (from-to)491-498
Number of pages8
JournalMYCOL RES
Volume106
Issue numberPt No. Part 4
DOIs
Publication statusPublished - 2002

Keywords

  • SACCHAROMYCES-CEREVISIAE
  • CREA
  • DNA
  • DENDRYPHIELLA-SALINA
  • Mycology
  • MSN2P
  • REPRESSION
  • YEAST ZYGOSACCHAROMYCES-ROUXII
  • FUNGI
  • SALT-TOLERANCE
  • AREA

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    O Neil, J. D., Bugno, M., Stanley, M., Barham-Morris, J. B., Woodcock, N. A., Clement, D. J., Clipson, N. J. W., Whitehead, M. P., Fincham, D. A., & Hooley, P. (2002). Cloning of a novel gene encoding a C2H2 zinc finger protein that alleviates sensitivity to abiotic stresses in Aspergillus nidulans. MYCOL RES, 106(Pt No. Part 4), 491-498. https://doi.org/10.1017/S0953756202005701