BAIT

GAP1

amino acid permease GAP1, L000000667, YKR039W
General amino acid permease; Gap1p senses the presence of amino acid substrates to regulate localization to the plasma membrane when needed; essential for invasive growth
Saccharomyces cerevisiae (S288c)
PREY

STP2

L000003370, YHR006W
Transcription factor; activated by proteolytic processing in response to signals from the SPS sensor system for external amino acids; activates transcription of amino acid permease genes; STP2 has a paralog, STP1, that arose from the whole genome duplication
Saccharomyces cerevisiae (S288c)

Synthetic Lethality

A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.

Publication

Amino acid signaling in yeast: post-genome duplication divergence of the Stp1 and Stp2 transcription factors.

Wielemans K, Jean C, Vissers S, Andre B

When yeast cells detect external amino acids via their permease-like Ssy1 sensor, the cytosolic precursor forms of Stp1 and Stp2 transcription factors are activated by endoproteolytic removal of their N-terminal domains, a reaction catalyzed by the Ssy5 endoprotease. The processed Stp factors then migrate into the nucleus, where they activate transcription of several amino acid permease genes including AGP1. We ... [more]

J. Biol. Chem. Jan. 08, 2010; 285(2);855-65 [Pubmed: 19906648]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: inviable (APO:0000112)
  • phenotype: rna accumulation (APO:0000224)

Additional Notes

  • GAP1/STP1/STP2 triple mutants are inviable
  • genetic complex
  • triple mutants show aberrant gene expression

Curated By

  • BioGRID