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ASG7 protein (Saccharomyces cerevisiae) - STRING interaction network
"ASG7" - Protein that regulates signaling from a G protein beta subunit Ste4p and its relocalization within the cell in Saccharomyces cerevisiae
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ASG7Protein that regulates signaling from a G protein beta subunit Ste4p and its relocalization within the cell; specific to a-cells and induced by alpha-factor; Required for receptor inhibition of inappropriately expressed a-factor receptor (STE3) in MAT a cells. Inhibits signaling by relocalizing the G protein beta-gamma (STE4-STE18) subunit to intracellular mebranes. May also be a mechanism for the down-regulation of the mating pheromone response after the zygotic fusion event, promoting the transition of the new diploid cell to vegetative growth (209 aa)    
Predicted Functional Partners:
AGA2
Adhesion subunit of a-agglutinin of a-cells, C-terminal sequence acts as a ligand for alpha-agglutinin (Sag1p) during agglutination, modified with O-linked oligomannosyl chains, linked to anchorage subunit Aga1p via two disulfide bonds; Receptor binding subunit of the a-agglutinin heterodimer. S.cerevisiae a and alpha cells express the complementary cell surface glycoproteins a-agglutinin and alpha- agglutinin, respectively, which interact with one another to promote cellular aggregation during mating (87 aa)
     
   
  0.964
MFA1
Mating pheromone a-factor, made by a cells; interacts with alpha cells to induce cell cycle arrest and other responses leading to mating; biogenesis involves C-terminal modification, N-terminal proteolysis, and export; also encoded by MFA2; The active factor is excreted into the culture medium by haploid cells of the A mating type and acts on cells of the opposite mating type (type alpha). It mediates the conjugation process between the two types by inhibiting the initiation of DNA synthesis in type alpha cells and synchronizing them with type A (36 aa)
     
   
  0.926
MFA2
Mating pheromone a-factor, made by a cells; interacts with alpha cells to induce cell cycle arrest and other responses leading to mating; biogenesis involves C-terminal modification, N-terminal proteolysis, and export; also encoded by MFA1; The active factor is excreted into the culture medium by haploid cells of the A mating type and acts on cells of the opposite mating type (type alpha). It mediates the conjugation process between the two types by inhibiting the initiation of DNA synthesis in type alpha cells and synchronizing them with type A (38 aa)
     
   
  0.907
BAR1
Aspartyl protease secreted into the periplasmic space of mating type a cells, helps cells find mating partners, cleaves and inactivates alpha factor allowing cells to recover from alpha-factor-induced cell cycle arrest; This protein called "barrier activity" is excreted by yeast cells mating type a. It is probably a protease that cleaves alpha-factor and thus acts as an antagonist of this mating pheromone and establishes optimal pheromone concentration for conjugation (587 aa)
     
   
  0.842
STE2
Receptor for alpha-factor pheromone; seven transmembrane-domain GPCR that interacts with both pheromone and a heterotrimeric G protein to initiate the signaling response that leads to mating between haploid a and alpha cells; Receptor for the peptide pheromone alpha factor, the mating factor of yeast (431 aa)
     
   
  0.835
STE3
Receptor for a factor pheromone, couples to MAP kinase cascade to mediate pheromone response; transcribed in alpha cells and required for mating by alpha cells, ligand bound receptors endocytosed and recycled to the plasma membrane; GPCR; Receptor for the peptide pheromone a factor (470 aa)
       
 
  0.722
STE6
Plasma membrane ATP-binding cassette (ABC) transporter required for the export of a-factor, catalyzes ATP hydrolysis coupled to a-factor transport; contains 12 transmembrane domains and two ATP binding domains; expressed only in MATa cells; STE6 is required in yeast MATA cells for production of A-factor pheromone. STE6 is involved in the transport of the farnesyl-derivation of the A-factor pheromone (1290 aa)
     
   
  0.690
HMLALPHA2
Silenced copy of ALPHA2 at HML; homeobox-domain protein that associates with Mcm1p in haploid cells to repress a-specific gene expression and interacts with a1p in diploid cells to repress haploid-specific gene expression; Mating type proteins are sequence specific DNA-binding proteins that act as master switches in yeast differentiation by controlling gene expression in a cell type-specific fashion. Silenced copy of ALPHA2 at HML (210 aa)
       
 
  0.658
SST2
GTPase-activating protein for Gpa1p, regulates desensitization to alpha factor pheromone; also required to prevent receptor-independent signaling of the mating pathway; member of the RGS (regulator of G-protein signaling) family; Desensitization to alpha-factor pheromone. Is involved in regulating the signaling pathway for responding to mating pheromone (698 aa)
           
  0.570
FUS1
Membrane protein localized to the shmoo tip, required for cell fusion; expression regulated by mating pheromone; proposed to coordinate signaling, fusion, and polarization events required for fusion; potential Cdc28p substrate; Required for cell fusion. Negatively regulates Sho1p signaling to ensure efficient cell fusion (512 aa)
     
   
  0.561
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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