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CTR3 protein (Saccharomyces cerevisiae) - STRING interaction network
"CTR3" - High-affinity copper transporter of the plasma membrane, acts as a trimer in Saccharomyces cerevisiae
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Predicted Interactions
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CTR3High-affinity copper transporter of the plasma membrane, acts as a trimer; gene is disrupted by a Ty2 transposon insertion in many laboratory strains of S. cerevisiae; Required for high affinity copper (probably reduced Cu I) transport into the cell (241 aa)    
Predicted Functional Partners:
CTR2
Putative low-affinity copper transporter of the vacuolar membrane; mutation confers resistance to toxic copper concentrations, while overexpression confers resistance to copper starvation; Provides bioavailable copper via mobilization of vacuolar copper stores and export to the cytoplasm (189 aa)
       
 
  0.968
FRE1
Ferric reductase and cupric reductase, reduces siderophore-bound iron and oxidized copper prior to uptake by transporters; expression induced by low copper and iron levels; Metalloreductase responsible for reducing extracellular iron and copper prior to import. Catalyzes the reductive uptake of Fe(3+)-salts and Fe(3+) bound to catecholate or hydroxamate siderophores. Fe(3+) is reduced to Fe(2+), which then dissociates from the siderophore and can be imported by the high-affinity Fe(2+) transport complex in the plasma membrane. Also participates in Cu(2+) reduction and Cu(+) uptake (686 aa)
     
   
  0.902
CCC2
Cu(+2)-transporting P-type ATPase, required for export of copper from the cytosol into an extracytosolic compartment; has similarity to human proteins involved in Menkes and Wilsons diseases; Probably involved in copper transport and in the regulation of cellular copper level. Retrieves copper from the metallochaperone ATX1 and incorporates it into trans-Golgi vesicles (1004 aa)
           
  0.869
FET3
Ferro-O2-oxidoreductase required for high-affinity iron uptake and involved in mediating resistance to copper ion toxicity, belongs to class of integral membrane multicopper oxidases; Iron transport multicopper ferroxidase required for Fe(2+) ion high affinity uptake. Required to oxidize Fe(2+) and release it from the transporter. Essential component of copper- dependent iron transport (636 aa)
           
  0.848
FRE7
Putative ferric reductase with similarity to Fre2p; expression induced by low copper levels; Cell surface metalloreductase. May be involved in copper homeostasis (620 aa)
     
   
  0.761
MAC1
Copper-sensing transcription factor involved in regulation of genes required for high affinity copper transport; Regulatory protein involved in Cu/Fe utilization and stress resistance. Involved in basal level transcription of FRE1 and H(2)O(2)-induced transcription of CTT1. Regulates the transcription of CTR1 and CTR3 via the copper ion responsive elements in their promoters. Required for degradation of CTR1 (417 aa)
           
  0.748
FET4
Low-affinity Fe(II) transporter of the plasma membrane; Required for Fe(2+) ion low affinity uptake (552 aa)
           
  0.730
FRE2
Ferric reductase and cupric reductase, reduces siderophore-bound iron and oxidized copper prior to uptake by transporters; expression induced by low iron levels but not by low copper levels; Metalloreductase responsible for reducing extracellular iron and copper prior to import. Catalyzes the reductive uptake of Fe(3+)-salts and Fe(3+) bound to catecholate or hydroxamate siderophores. Fe(3+) is reduced to Fe(2+), which then dissociates from the siderophore and can be imported by the high-affinity Fe(2+) transport complex in the plasma membrane. Also participates in Cu(2+) reduction and [...] (711 aa)
     
   
  0.722
FTR1
High affinity iron permease involved in the transport of iron across the plasma membrane; forms complex with Fet3p; expression is regulated by iron; Permease for high affinity iron uptake (404 aa)
           
  0.702
CRS5
Copper-binding metallothionein, required for wild-type copper resistance; Critical role in copper (specific) homeostasis and detoxification. May protect by directly chelating and sequestering copper ions (69 aa)
           
  0.700
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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