Aspergillus nidulans stcP encodes an O-methyltransferase that is required for sterigmatocystin biosynthesis

Appl Environ Microbiol. 1996 Nov;62(11):4296-8. doi: 10.1128/aem.62.11.4296-4298.1996.

Abstract

The Aspergillus nidulans stcP gene was previously identified as a transcribed region associated with a cluster of genes proposed to be involved in sterigmatocystin biosynthesis (D. W. Brown, J.-H. Yu, H. S. Kelkar, M. Fernandes, T. C. Nesbitt, N. P. Keller, T. H. Adams, and T. J. Leonard, Proc. Natl. Acad. Sci. USA 93:1418-1422, 1996). stcP was predicted to encode a methyltransferase responsible for conversion of demethylsterig-matocystin to sterigmatocystin. Here we demonstrate that disruption of stcP in A. nidulans results in strains that accumulate demethylsterigmatocystin.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Aspergillus nidulans / enzymology*
  • Aspergillus nidulans / genetics*
  • Aspergillus nidulans / metabolism
  • Escherichia coli / genetics
  • Fungal Proteins*
  • Genes, Fungal*
  • Methyltransferases / genetics*
  • Methyltransferases / metabolism*
  • Molecular Sequence Data
  • Multigene Family
  • Mutagenesis
  • Recombinant Fusion Proteins / genetics
  • Recombinant Fusion Proteins / metabolism
  • Sequence Homology, Amino Acid
  • Sterigmatocystin / biosynthesis*

Substances

  • Fungal Proteins
  • Recombinant Fusion Proteins
  • Sterigmatocystin
  • Methyltransferases
  • omtA protein, Aspergillus

Associated data

  • GENBANK/U34740