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.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
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[Homology]
Score
napBPeriplasmic nitrate reductase cytochrome c subunit NapB; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from the membrane-anchored tetraheme c-type CymA protein and transfers these to NapA subunit, thus allowing electron flow between membrane and periplasm. Not essential for nitrate reduction but confers advantage to the organism when grown on nitrate and thereby a fitness gain in utilizing nitrate. Belongs to the NapB family. (143 aa)    
Predicted Functional Partners:
napA
Periplasmic nitrate reductase molybdopterin-binding subunit NapA; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite.
 
 0.999
napH
Quinol dehydrogenase ferredoxin subunit NapH.
 
  
 0.998
napD
Periplasmic nitrate reductase chaperone NapD; Chaperone for NapA, the catalytic subunit of the periplasmic nitrate reductase. It binds directly and specifically to the twin- arginine signal peptide of NapA, preventing premature interaction with the Tat translocase and premature export.
 
  
 0.998
napG
Periplasmic nitrate reductase ferredoxin component NapG.
 
  
 0.996
cymA
Membrane anchored tetraheme cytochrome c CymA.
 
  
 0.991
nrfA
Ammonia-forming nitrite reductase NrfA; Catalyzes the reduction of nitrite to ammonia, consuming six electrons in the process. Has very low activity toward hydroxylamine. Has even lower activity toward sulfite. Sulfite reductase activity is maximal at neutral pH (By similarity); Belongs to the cytochrome c-552 family.
  
 
 0.983
torC
Trimethylamine N-oxide reductase membrane anchored cytochrome c component TorC; Belongs to the TorC/TorY family.
 
  
 0.977
SO_0471
FMN-dependent nitronate monooxygenase.
     
  0.900
napF
Nitrate reductase (NapA) maturase NapF; Could be involved in the maturation of NapA, the catalytic subunit of the periplasmic nitrate reductase, before its export into the periplasm; Belongs to the NapF family.
 
  
 0.890
dmsE
Periplasmic decaheme cytochrome c DmsE.
  
  
 0.861
Your Current Organism:
Shewanella oneidensis
NCBI taxonomy Id: 211586
Other names: S. oneidensis MR-1, Shewanella oneidensis ATCC 700550, Shewanella oneidensis MR-1, Shewanella oneidensis str. MR-1, Shewanella oneidensis strain MR-1, Shewanella sp. MR-1
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