STE23 protein (Saccharomyces cerevisiae) - STRING interaction network
"STE23" - Metalloprotease involved, with homolog Axl1p, in N-terminal processing of pro-a-factor to the mature form in Saccharomyces cerevisiae
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Predicted Interactions
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Gene Fusion
STE23Metalloprotease involved, with homolog Axl1p, in N-terminal processing of pro-a-factor to the mature form; expressed in both haploids and diploids; member of the insulin-degrading enzyme family; Involved in the N-terminal endoproteolytic cleavage of the P2 precursor of the a-factor mating pheromone. Capable of proteolysing the established mammalian insulin-degrading enzymes (IDEs) substrates amyloid-beta peptide and insulin B-chain (1027 aa)    
Predicted Functional Partners:
Proteasome-interacting protein involved in the assembly of the base subcomplex of the 19S proteasomal regulatory particle (RP); ortholog of human oncoprotein gankyrin, which interacts with the Rb tumor suppressor and CDK4/6; Acts as a chaperone during the assembly of the 26S proteasome, specifically of the 19S regulatory complex (RC) and appears to have an overlapping role with RPN14 (228 aa)
Transcriptional activator related to Msn4p; activated in stress conditions, which results in translocation from the cytoplasm to the nucleus; binds DNA at stress response elements of responsive genes, inducing gene expression; Positive transcriptional factor that acts as a component of the stress responsive system. Recognizes and binds to the stress response element (STRE) which is involved in the response to various forms of stress (heat, oxidative, osmotic, etc.). Involved in the regulation of the CTT1, DDR2, HSP12 genes. May be regulated via WHI2-PSR1 complex phosphatase activity (704 aa)
Highly conserved zinc metalloprotease that functions in two steps of a-factor maturation, C-terminal CAAX proteolysis and the first step of N-terminal proteolytic processing; contains multiple transmembrane spans; Proteolytically removes the C-terminal three residues of farnesylated A-factor mating pheromone. Also acts to cleave the N- terminal extension of the pheromone. Does not act on Ras (453 aa)
Farnesyl cysteine-carboxyl methyltransferase, mediates the carboxyl methylation step during C-terminal CAAX motif processing of a-factor and RAS proteins in the endoplasmic reticulum, localizes to the ER membrane; Mediates C-terminal methylation of the isoprenylated C- terminal cysteine in A-factor mating pheromone and Ras proteins (239 aa)
Type II CAAX prenyl protease involved in the proteolysis and maturation of Ras and the a-factor mating pheromone; Proteolytically removes the C-terminal three residues of farnesylated proteins, including the a-factor mating pheromone and RAS (315 aa)
Probable phosphopantothenoylcysteine synthetase (PPCS), which catalyzes the second step of coenzyme A biosynthesis from pantothenate; null mutant lethality is complemented by E. coli coaBC (encoding a bifunctional enzyme with PPCS activity); Catalyzes the first step in the biosynthesis of coenzyme A from vitamin B5, where cysteine is conjugated to 4’- phosphopantothenate to form 4-phosphopantothenoylcysteine (365 aa)
Mating pheromone alpha-factor, made by alpha cells; interacts with mating type a cells to induce cell cycle arrest and other responses leading to mating; also encoded by MF(ALPHA)2, although MF(ALPHA)1 produces most alpha-factor; The active factor is excreted into the culture medium by haploid cells of the alpha mating type and acts on cells of the opposite mating type (type A). It mediates the conjugation process between the two types by inhibiting the initiation of DNA synthesis in type a cells and synchronizing them with type alpha (165 aa)
Beta subunit of the CAAX farnesyltransferase (FTase) that prenylates the a-factor mating pheromone and Ras proteins; required for the membrane localization of Ras proteins and a-factor; homolog of the mammalian FTase beta subunit; Catalyzes the transfer of a farnesyl moiety from farnesyl diphosphate to a cysteine at the fourth position from the C-terminus of several proteins such as a-factor and RAS. The beta subunit is responsible for peptide-binding (431 aa)
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)
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)
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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