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GPA2 protein (Saccharomyces cerevisiae) - STRING interaction network
"GPA2" - Nucleotide binding alpha subunit of the heterotrimeric G protein in Saccharomyces cerevisiae
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second shell of interactors
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Known Interactions
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experimentally determined
Predicted Interactions
gene neighborhood
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textmining
co-expression
protein homology
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GPA2Nucleotide binding alpha subunit of the heterotrimeric G protein; interacts with the receptor Gpr1p, has signaling role in response to nutrients; required for the recruitment of Ras-GTP at the plasma membrane and in the nucleus; Alpha subunit of the heterotrimeric guanine nucleotide- binding protein (G protein) involved in glucose-induced cAMP signaling. Binds to its cognate transmembrane receptor GPR1, which senses extracellular carbon sources, and activates cAMP-PKA signaling and governs diploid pseudohyphal differentiation and haploid invasive growth. The G protein beta-mimic protei [...] (449 aa)    
Predicted Functional Partners:
CYR1
Adenylate cyclase, required for cAMP production and cAMP-dependent protein kinase signaling; the cAMP pathway controls a variety of cellular processes, including metabolism, cell cycle, stress response, stationary phase, and sporulation; Plays essential roles in regulation of cellular metabolism by catalyzing the synthesis of a second messenger, cAMP (2026 aa)
     
  0.999
GPR1
Plasma membrane G protein coupled receptor (GPCR); interacts with the heterotrimeric G protein alpha subunit, Gpa2p, and with Plc1p; sensor that integrates nutritional signals with the modulation of cell fate via PKA and cAMP synthesis; Seems to associate with GPA2 and act as G protein- coupled receptor that senses glucose and controls filamentous growth. It acts upstream of adenylate cyclase and is required for glucose activation of cAMP synthesis in concert with a glucose phosphorylation-dependent mechanism (961 aa)
     
  0.999
STE4
G protein beta subunit, forms a dimer with Ste18p to activate the mating signaling pathway, forms a heterotrimer with Gpa1p and Ste18p to dampen signaling; may recruit Rho1p to the polarized growth site during mating; contains WD40 repeats; Implicated in the a- and alpha-factor response pathway. The beta and gamma chains of the putative yeast mating response pathway G protein play a positive role in initiation of the mating response. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein- effector interaction (423 aa)
     
  0.990
RAS2
GTP-binding protein that regulates the nitrogen starvation response, sporulation, and filamentous growth; farnesylation and palmitoylation required for activity and localization to plasma membrane; homolog of mammalian Ras proto-oncogenes; The S.cerevisiae Ras proteins modulate the activity of the adenylate cyclase catalytic subunit and therefore affect the biosynthesis of cyclic-AMP (322 aa)
     
  0.983
PDE2
High-affinity cyclic AMP phosphodiesterase, component of the cAMP-dependent protein kinase signaling system, protects the cell from extracellular cAMP, contains readthrough motif surrounding termination codon; Controls the level of cAMP in yeast cells, together with the low-affinity cAMP phosphodiesterase (PDE1) (526 aa)
       
  0.983
RGS2
Negative regulator of glucose-induced cAMP signaling; directly activates the GTPase activity of the heterotrimeric G protein alpha subunit Gpa2p; GTPase activating protein for GPA2. Negatively down- regulates glucose-induced cAMP signaling via GPA2 (309 aa)
       
  0.982
RAS1
GTPase involved in G-protein signaling in the adenylate cyclase activating pathway, plays a role in cell proliferation; localized to the plasma membrane; homolog of mammalian RAS proto-oncogenes; The S.cerevisiae Ras proteins modulate the activity of the adenylate cyclase catalytic subunit and therefore affect the biosynthesis of cyclic-AMP (309 aa)
     
  0.973
HOG1
Mitogen-activated protein kinase involved in osmoregulation; acts via three independent osmosensors; mitophagy-specific regulator; mediates the recruitment and activation of RNA Pol II at Hot1p-dependent promoters; localization regulated by Ptp2p an /.../p; Mitogen-activated protein kinase involved in a signal transduction pathway that is activated by changes in the osmolarity of the extracellular environment. Controls osmotic regulation of transcription via the stress response element (STRE) in promoters of target genes. Upon osmotic shock, associates with the SKO1-SSN6-TUP1 complex, [...] (435 aa)
     
  0.967
TPK2
cAMP-dependent protein kinase catalytic subunit; promotes vegetative growth in response to nutrients via the Ras-cAMP signaling pathway; partially redundant with Tpk1p and Tpk3p; localizes to P-bodies during stationary phase (380 aa)
     
  0.956
SCH9
Protein kinase involved in transcriptional activation of osmostress-responsive genes; regulates G1 progression, cAPK activity, nitrogen activation of the FGM pathway; involved in life span regulation; homologous to mammalian Akt/PKB; Protein kinase that is part of growth control pathway which is at least partially redundant with the cAMP pathway. Regulates both BCY1 phosphorylation and MPK1 activity (PubMed-20702584). Regulates ribosome biogenesis, translation initiation, and entry into stationary phase in a TORC1-dependent manner (PubMed-17560372) (824 aa)
     
  0.953
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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