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
ctaGCytochrome aa(3) assembly factor; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type f: factor. (297 aa)    
Predicted Functional Partners:
ctaF
Cytochrome caa3 oxidase (subunit IV); Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme; Belongs to the cytochrome c oxidase bacterial subunit 4 family.
 
  
 0.997
ctaC
Cytochrome caa3 oxidase (subunit II); Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B).
 
  
 0.992
ctaE
Cytochrome caa3 oxidase (subunit III); Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme; Belongs to the cytochrome c oxidase subunit 3 family.
 
  
 0.989
ctaD
Cytochrome caa3 oxidase (subunit I); Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. Co I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme a of subunit 1 to the bimetallic center formed by heme a3 and copper B. This cytochrome c oxidase shows proton pump activity across the membrane in addition to the electron transfer.
 
  
 0.987
cccA
Cytochrome c550; Not essential for growth on minimal or rich media.
 
  
 0.947
qcrC
Menaquinol:cytochrome c oxidoreductase (cytochrome cc subunit); Component of the menaquinol-cytochrome c reductase complex.
 
  
 0.938
cccB
Cytochrome c551; Electron carrier protein.
 
  
 0.929
scuA
Assembly factor BSco of the Cu(A) site of cytochrome c oxidase; Necessary for insertion of copper into the active site of cytochrome c oxidase. May play a role in copper homeostasis or redox signaling; Belongs to the SCO1/2 family.
 
  
 0.924
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.
 
  
 0.909
qcrB
Menaquinol:cytochrome c oxidoreductase (cytochrome b subunit); Component of the menaquinol-cytochrome c reductase complex.
 
  
 0.888
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
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