Saccharomyces cerevisiae CUP1 metallothionein promoter
S. cerevisiae CUP1 metallothionein promoter; low basal expression, induced dose-dependently by extracellular Cu2+ through the Ace1/Cup2 transcription factor. Enables tunable, copper-regulated gene expression without cytotoxicity at moderate concentrations.
Characteristics
Cu²⁺-inducible yeast promoter regulated by Ace1/Cup2 transcription factor. Low basal expression; induced dose-dependently by exogenous copper. Used for controlled transgene expression in S. cerevisiae.