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:
some 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 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
Cooccurence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
ccmBHeme exporter protein B; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes (220 aa)    
Predicted Functional Partners:
ccmA
Cytochrome c biogenesis ATP-binding export protein CcmA; Part of the ABC transporter complex CcmAB involved in the biogenesis of c-type cytochromes; once thought to export heme, this seems not to be the case, but its exact role is uncertain. Responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily. CcmA exporter (TC 3.A.1.107) family
 0.999
ccmE
Cytochrome c-type biogenesis protein CcmE; Heme chaperone required for the biogenesis of c-type cytochromes. Transiently binds heme delivered by CcmC and transfers the heme to apo-cytochromes in a process facilitated by CcmF and CcmH; Belongs to the CcmE/CycJ family
 
 0.998
ccmC
Heme exporter protein C; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes
 
 
 0.998
ccmD
Heme exporter protein D; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes
 
 
 0.994
ccmF
Cytochrome c-type biogenesis protein CcmF; Required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase
 
  
 0.976
ccmH
Cytochrome c-type biogenesis protein CcmH; May be required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase
 
  
 0.975
dsbE
Thiol:disulfide interchange protein DsbE; Involved in disulfide bond formation. Catalyzes a late, reductive step in the assembly of periplasmic c-type cytochromes, probably the reduction of disulfide bonds of the apocytochrome c to allow covalent linkage with the heme. Possible subunit of a heme lyase. DsbE is maintained in a reduced state by DsbD
 
  
 0.964
napC
Cytochrome c-type protein NapC; Mediates electron flow from quinones to the NapAB complex
 
    0.943
napB
Periplasmic nitrate reductase, electron transfer subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from the membrane- anchored tetraheme c-type NapC protein and transfers these to NapA subunit, thus allowing electron flow between membrane and periplasm. Essential for periplasmic nitrate reduction with nitrate as the terminal electron acceptor
 
     0.911
fhuC
Iron(3+)-hydroxamate import ATP-binding protein FhuC; Part of the ABC transporter complex FhuCDB involved in iron(3+)-hydroxamate import. Responsible for energy coupling to the transport system
     
 0.906
Your Current Organism:
Escherichia coli K12 MG1655
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli K12 MG1655, Escherichia coli K12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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