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
pqqBCoenzyme PQQ synthesis protein B; May be involved in the transport of PQQ or its precursor to the periplasm; Belongs to the PqqB family. (305 aa)    
Predicted Functional Partners:
pqqC
Coenzyme PQQ synthesis protein C; Ring cyclization and eight-electron oxidation of 3a-(2-amino- 2-carboxyethyl)-4,5-dioxo-4,5,6,7,8,9-hexahydroquinoline-7,9- dicarboxylic-acid to PQQ.
  
 0.997
pqqD
Coenzyme PQQ synthesis protein D; Functions as a PqqA binding protein and presents PqqA to PqqE, in the pyrroloquinoline quinone (PQQ) biosynthetic pathway.
 
  
 0.989
pqqE
Coenzyme PQQ synthesis protein E; Catalyzes the cross-linking of a glutamate residue and a tyrosine residue in the PqqA protein as part of the biosynthesis of pyrroloquinoline quinone (PQQ).
 
  
 0.919
exaA
Quinoprotein alcohol dehydrogenase; Identified by similarity to SP:Q9Z4J7; match to protein family HMM PF01011.
 
  
 0.834
CPS_1892
Conserved hypothetical protein; Identified by similarity to GP:25989532; match to protein family HMM TIGR02276.
  
     0.696
CPS_1894
Putative daunorubicin resistance ABC transporter, permease protein; Identified by match to protein family HMM PF01061.
 
   
 0.668
CPS_1891
Conserved hypothetical protein; Identified by similarity to GP:27354466.
  
     0.664
CPS_1926
TonB-dependent receptor; Identified by match to protein family HMM PF00593; match to protein family HMM PF07715.
 
     0.647
exaB
Cytochrome c550; Identified by similarity to GP:3928679; match to protein family HMM PF00034.
 
  
 0.644
CPS_1928
Putative sulfonate ABC transporter, periplasmic sulfonate-binding protein; Identified by similarity to GP:27354477.
  
     0.628
Your Current Organism:
Colwellia psychrerythraea
NCBI taxonomy Id: 167879
Other names: C. psychrerythraea 34H, Colwellia psychrerythraea 34H, Colwellia psychrerythraea str. 34H, Colwellia psychrerythraea strain 34H, Colwellia sp. 34H
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