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CUP9 protein (Saccharomyces cerevisiae) - STRING interaction network
"CUP9" - Homeodomain-containing transcriptional repressor of PTR2, which encodes a major peptide transporter in Saccharomyces cerevisiae
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CUP9Homeodomain-containing transcriptional repressor of PTR2, which encodes a major peptide transporter; imported peptides activate ubiquitin-dependent proteolysis, resulting in degradation of Cup9p and de-repression of PTR2 transcription; Probable DNA-binding protein which plays a role in protecting yeast cells against copper toxicity. May regulate the expression of important copper homeostatic genes (306 aa)    
Predicted Functional Partners:
PTR2
Integral membrane peptide transporter, mediates transport of di- and tri-peptides; conserved protein that contains 12 transmembrane domains; PTR2 expression is regulated by the N-end rule pathway via repression by Cup9p; Uptake of small peptides (601 aa)
           
  0.934
UBR1
E3 ubiquitin ligase (N-recognin), forms heterodimer with Rad6p to ubiquitinate substrates in the N-end rule pathway; regulates peptide transport via Cup9p ubiquitination; mutation in human UBR1 causes Johansson-Blizzard Syndrome (JBS); Ubiquitin ligase protein which is a component of the N- end rule pathway. Recognizes and binds to proteins bearing specific N-terminal residues that are destabilizing according to the N-end rule, leading to their ubiquitination and subsequent degradation (1950 aa)
       
 
  0.867
ATE1
Arginyl-tRNA-protein transferase, catalyzes post-translational conjugation of arginine to the amino termini of acceptor proteins which are then subject to degradation via the N-end rule pathway; Involved in the post-translational conjugation of arginine to the N-terminal aspartate or glutamate of a protein. This arginylation is required for degradation of the protein via the ubiquitin pathway. Does not arginylate cysteine residues (By similarity) (503 aa)
     
   
  0.794
YPT11
Rab family GTPase that interacts with the C-terminal tail domain of Myo2p; mediates distribution of mitochondria and endoplasmic reticuli to daughter cells; Involved in the positive control of both endoplasmic reticulum (ER) and mitochondrion inheritance during cell divison. Required for the MYO2-dependent retention of newly inherited mitochondria at the bud tip in developing daughter cells (417 aa)
       
 
  0.709
NDC1
Nuclear envelope protein with multiple putative transmembrane domains, required for nuclear pore complex assembly and spindle pole body duplication; required for meiosis II; Functions as a component of the nuclear pore complex (NPC) and the spindle pole body (SPB), probably by playing a key role in de novo assembly and insertion of both structures in the nuclear envelope. In SPB duplication NDC1 is required for the insertion of the cytoplasmic side of the SPB in the nuclear envelope, thus allowing for the assembly of the nucleoplasmic SPB side. NPC components, collectively referred to [...] (655 aa)
       
      0.699
UBR2
Cytoplasmic ubiquitin-protein ligase (E3); required for ubiquitylation of Rpn4p; mediates formation of a Mub1p-Ubr2p-Rad6p complex; E3 ubiquitin-protein ligase which probably functions outside the N-end rule pathway, since it lacks the residues essential for the degradation of N-end rule substrates. Mediates RPN4 ubiquitination and subsequent degradation (1872 aa)
           
  0.641
NTA1
Amidase, removes the amide group from N-terminal asparagine and glutamine residues to generate proteins with N-terminal aspartate and glutamate residues that are targets of ubiquitin-mediated degradation; Deamidates N-terminal Asn and Gln. Component of a targeting complex in the N-end rule pathway (457 aa)
           
  0.638
CYC8
General transcriptional co-repressor, acts together with Tup1p; also acts as part of a transcriptional co-activator complex that recruits the SWI/SNF and SAGA complexes to promoters; can form the prion [OCT+]; Acts as component of the CYC8-TUP1 corepressor complex which is involved in the repression of many genes in a wide variety of physiological processes including heme-regulated and catabolite repressed genes. May also be involved in the derepression of at least some target genes. The complex is recruited to target genes by interaction with DNA-bound transcriptional repressors, like [...] (966 aa)
       
 
  0.635
GLT1
NAD(+)-dependent glutamate synthase (GOGAT), synthesizes glutamate from glutamine and alpha-ketoglutarate; with Gln1p, forms the secondary pathway for glutamate biosynthesis from ammonia; expression regulated by nitrogen source; Forms L-glutamate from L-glutamine and 2-oxoglutarate. Represents an alternative pathway to L-glutamate dehydrogenase for the biosynthesis of L-glutamate. Participates with glutamine synthetase in ammonia assimilation processes. The enzyme is specific for NADH, L-glutamine and 2-oxoglutarate (2145 aa)
       
 
  0.611
DAL5
Allantoate permease; ureidosuccinate permease; also transports dipeptides, though with lower affinity than for allantoate and ureidosuccinate; expression is constitutive but sensitive to nitrogen catabolite repression; Component of the allantoate transport system (543 aa)
           
  0.598
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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