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
ccmBHeme export ABC transporter permease; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes. (220 aa)    
Predicted Functional Partners:
ccmE
Periplasmic heme chaperone; 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.
 
 0.999
ccmD
Cytochrome c biogenesis protein; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes.
 
 0.999
ccmC
Heme export ABC transporter permease; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes.
 
 0.999
ccmA
Heme export ABC transporter ATPase; 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.
 0.999
ccmF
Heme lyase, CcmF subunit; Required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase.
 
  
 0.993
dsbE
Periplasmic thioredoxin of cytochrome c-type biogenesis; 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.
 
  
 0.985
ccmH
Heme lyase, CcmH subunit; May be required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase.
 
  
 0.966
napC
Quinol dehydrogenase, electron source for NapAB; Mediates electron flow from quinones to the NapAB complex.
 
  
 0.904
argD
Bifunctional acetylornithine aminotransferase and succinyldiaminopimelate aminotransferase; Involved in both the arginine and lysine biosynthetic pathways; Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family. ArgD subfamily.
      
 0.900
napB
Nitrate reductase, small, cytochrome C550 subunit, periplasmic; 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; Belongs to the NapB family.
 
    0.868
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 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
Server load: medium (42%) [HD]