STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
ycnJPutative copper import protein; Involved in uptake of extracellular oxidized copper under copper-limiting conditions; In the N-terminal section; belongs to the CopC family. (541 aa)    
Predicted Functional Partners:
ycnI
Conserved hypothetical protein; Evidence 4: Homologs of previously reported genes of unknown function.
 
  
 0.999
ycnK
Putative transcriptional regulator (DeoR family); May act as a negative transcriptional regulator of ycnJ in the presence of copper. May use copper as a corepressor.
  
  
 0.999
csoR
Repressor of copper utilisation proteins; Copper-sensitive repressor that has a key role in copper homeostasis. Negatively regulates expression of the copZA operon and of ycnJ. In the absence of copper ions, binds with high affinity to the copZA promoter and represses the transcription. In the presence of copper ions, CsoR binds Cu(1+), which significantly decreases its DNA binding affinity and leads to the transcription of the genes.
     
 0.953
copZ
Copper insertion chaperone and transporter component; Chaperone that serves for the intracellular sequestration and transport of Cu(+). Delivers Cu(+) to the copper-transporting ATPase CopA. Functions in E.coli to transfer Cu(+) to CopA missing its first metal-binding domain.
     
 0.944
cueR
Copper efflux transcriptional regulator; Transcriptional activator of the copZA operon.
      
 0.920
copB
copper(I)-transporting ATPase; Couples the hydrolysis of ATP with the transport of cadmium, zinc and cobalt out of the cell. Does not seem to transport copper.
     
 0.888
ctaA
heme-A synthase; Catalyzes the oxidation of the C8 methyl side group on heme O porphyrin ring into a formyl group. Also involved in the sporulation.
  
  
 0.873
efeN
Peroxidase converting ferric iron into ferrous iron; Involved in the recovery of exogenous heme iron. Extracts iron from heme while preserving the tetrapyrrol ring intact (By similarity).
 
  
 0.869
ycnL
Putative reductase or disulfide isomerase; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pe: putative enzyme.
  
  
 0.755
czcD
Potassium/proton-divalent cation antiporter; Involved in divalent cation and potassium homeostasis in the cell. Catalyzes the active efflux of zinc, cadmium and cobalt, in exchange for potassium and H(+) ions.
     
 0.733
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
Server load: medium (52%) [HD]