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
ccmHHeme lyase, CcmH subunit; May be required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase. (350 aa)    
Predicted Functional Partners:
ccmF
Heme lyase, CcmF subunit; Required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase.
 
 0.999
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.
  
 0.998
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.
 
  
 0.995
ccmC
Heme export ABC transporter permease; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes.
 
  
 0.991
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.
 
  
 0.991
ccmD
Cytochrome c biogenesis protein; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes.
 
  
 0.977
ccmB
Heme export ABC transporter permease; Required for the export of heme to the periplasm for the biogenesis of c-type cytochromes.
 
  
 0.966
nrfE
Heme lyase (NrfEFG) for insertion of heme into c552, subunit NrfE; May be required for the biogenesis of c-type cytochromes. Possible subunit of a heme lyase.
  
 0.920
dsbD
Thiol:disulfide interchange protein and activator of DsbC; Required to facilitate the formation of correct disulfide bonds in some periplasmic proteins and for the assembly of the periplasmic c-type cytochromes. Acts by transferring electrons from cytoplasmic thioredoxin to the periplasm, thereby maintaining the active site of DsbC, DsbE and DsbG in a reduced state. This transfer involves a cascade of disulfide bond formation and reduction steps; Belongs to the thioredoxin family. DsbD subfamily.
      
 0.814
napC
Quinol dehydrogenase, electron source for NapAB; Mediates electron flow from quinones to the NapAB complex.
 
  
 0.805
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
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