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SNF3 protein (Saccharomyces cerevisiae) - STRING interaction network
"SNF3" - Plasma membrane low glucose sensor that regulates glucose transport in Saccharomyces cerevisiae
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Predicted Interactions
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SNF3Plasma membrane low glucose sensor that regulates glucose transport; contains 12 predicted transmembrane segments and a long C-terminal tail required for induction of hexose transporters; also senses fructose and mannose; similar to Rgt2p; High-affinity glucose transporter. Can function as a negative regulator of glucose transport. SNF3 is involved as well in the transport of mannose and fructose. Serves as a sensor that generates an intracellular signal in the presence of low level of glucose. Inhibition of RGT1 by low levels of glucose, and hence induction of HTX2 and HTX4 expression [...] (884 aa)    
Predicted Functional Partners:
SNF1
AMP-activated serine/threonine protein kinase found in a complex containing Snf4p and members of the Sip1p/Sip2p/Gal83p family; required for transcription of glucose-repressed genes, thermotolerance, sporulation, and peroxisome biogenesis; Essential for release from glucose repression. It interacts and has functional relationship to the regulatory protein SNF4. Could phosphorylate CAT8. Phosphorylates histone H3 to form H3S10ph, which promotes H3K14ac formation, and which is required for transcriptional activation through TBP recruitment to the promoters (633 aa)
       
  0.972
RGT1
Glucose-responsive transcription factor that regulates expression of several glucose transporter (HXT) genes in response to glucose; binds to promoters and acts both as a transcriptional activator and repressor; Glucose-responsive transcription factor that regulates expression of several glucose transporter (HXT) genes in response to glucose. In the absence of glucose, it functions as a transcriptional repressor, whereas high concentrations of glucose cause it to function as a transcriptional activator. In cells growing on low levels of glucose, has a neutral role, neither repressing n [...] (1170 aa)
       
 
  0.961
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)
       
 
  0.924
APL2
Beta-adaptin, large subunit of the clathrin-associated protein (AP-1) complex; binds clathrin; involved in clathrin-dependent Golgi protein sorting; Adaptins are components of the adaptor complexes which link clathrin to receptors in coated vesicles. Clathrin-associated protein complexes are believed to interact with the cytoplasmic tails of membrane proteins, leading to their selection and concentration. The AP-1 complex interacts directly with clathrin (726 aa)
       
    0.908
STD1
Protein involved in control of glucose-regulated gene expression; interacts with kinase Snf1p, glucose sensors Snf3p and Rgt2p, TATA-binding Spt15p; regulator of transcription factor Rgt1p; interactions with Pma1p appear to propagate [GAR+]; Involved in modulation of glucose-regulated gene expression. Together with MTH1, represses the hexose transporter (HXT) genes in conditions of low glucose. Stimulates the SNF1 kinase by an interaction with the catalytic domain that antagonizes autoinhibition and promotes an active conformation of the kinase (444 aa)
       
 
  0.908
GLK1
Glucokinase, catalyzes the phosphorylation of glucose at C6 in the first irreversible step of glucose metabolism; one of three glucose phosphorylating enzymes; expression regulated by non-fermentable carbon sources; Two isoenzymes, hexokinase-1 and hexokinase-2, can phosphorylate keto- and aldohexoses in yeast, whereas a third isoenzyme, GLK, is specific for aldohexoses. All glucose phosphorylating enzymes are involved in glucose uptake (500 aa)
     
   
  0.904
HXK2
Hexokinase isoenzyme 2 that catalyzes phosphorylation of glucose in the cytosol; predominant hexokinase during growth on glucose; functions in the nucleus to repress expression of HXK1 and GLK1 and to induce expression of its own gene; Main glucose phosphorylating enzyme. May play a regulatory role in both induction and repression of gene expression by glucose (486 aa)
     
   
  0.903
APM1
Mu1-like medium subunit of the clathrin-associated protein complex (AP-1); binds clathrin; involved in clathrin-dependent Golgi protein sorting; Component of the adaptor complexes which link clathrin to receptors in coated vesicles. Clathrin-associated protein complexes are believed to interact with the cytoplasmic tails of membrane proteins, leading to their selection and concentration. The AP-1 complex interacts directly with clathrin. AP57 is probably a subunit of the Golgi membrane adaptor (475 aa)
         
  0.902
APS1
Small subunit of the clathrin-associated adaptor complex AP-1; AP-1 is involved in protein sorting at the trans-Golgi network; homolog of the sigma subunit of the mammalian clathrin AP-1 complex; Component of the adaptor complexes which link clathrin to receptors in coated vesicles. Clathrin-associated protein complexes are believed to interact with the cytoplasmic tails of membrane proteins, leading to their selection and concentration. AP19 is probably a subunit of the Golgi membrane adaptor (156 aa)
         
    0.900
APL3
Alpha-adaptin, large subunit of the clathrin associated protein complex (AP-2); involved in vesicle mediated transport; Adaptins are components of the adaptor complexes which link clathrin to receptors in coated vesicles. Clathrin-associated protein complexes are believed to interact with the cytoplasmic tails of membrane proteins, leading to their selection and concentration. Alpha adaptin is a subunit of the plasma membrane adaptor. Facilitates interaction between APL1 and APS2 (1025 aa)
         
    0.900
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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