Multiple positive and negative cis-acting elements of the STA2 gene regulate glucoamylase synthesis in Saccharomyces cerevisiae

Marius G. Lambrechts, Isak S. Pretorius*, Vincenzo S. D'Aguanno, Paul Sollitti, Julius Marmur

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Expression of the glucoamylase-encoding gene (STA2) in Saccharomyces cerevisiae was previously shown to be regulated transcriptionally by both positive and negative factors. The objective of this work was to identify the cis-acting elements responsible for STA2 transcriptional activation as well as the transcriptional repressor effects of STA10 and MATa/MATα. We identified two upstream activation regions (UAS). Three repressor regions responsive to STA10-mediated repression were identified, as well as two regions for down-regulation of STA2 expression. MATa/MATα repression appears to effect STA2 expression either downstream from the translational start site or, indirectly, since no functional al/α2-responsive sequence was identified in the promoter region.

Original languageEnglish
Pages (from-to)137-144
Number of pages8
JournalGene
Volume146
Issue number2
DOIs
Publication statusPublished - 2 Sept 1994
Externally publishedYes

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