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
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Cooccurrence
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[Homology]
Score
nhaCNa+/H+ antiporter; Is a secondary, electrogenic Na(+)/H(+) antiporter that catalyzes Na(+) uptake and proton efflux. Makes modest contributions to pH homeostasis in the alkaline range of pH but is not contributor to Na(+) resistance. Appears to have a repressive effect on growth and on alkaline phosphatases production in the presence of sodium, by affecting the transcription of the phoP/phoR two-component regulatory system. (453 aa)    
Predicted Functional Partners:
nhaK
Na+/H+ antiporter; Transporter involved in the efflux of sodium, potassium, lithium and rubidium.
      
 0.853
salA
Mrp family regulator; Binds and transfers iron-sulfur (Fe-S) clusters to target apoproteins. Can hydrolyze ATP; Belongs to the Mrp/NBP35 ATP-binding proteins family.
      
 0.756
opuD
Glycine betaine transporter; High-affinity uptake of glycine betaine. Does not mediate either carnitine or choline uptake; Belongs to the BCCT transporter (TC 2.A.15) family.
      
 0.713
ktrC
Potassium uptake protein; Catalytic subunit of the KtrCD potassium uptake transporter. The 2 major potassium transporter complexes KtrAB and KtrCD confer resistance to both suddenly imposed and prolonged osmotic stress.
      
 0.594
yqeW
Putative Na+/anion cotransporter; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pt: putative transporter.
      
 0.589
nhaX
Stress response protein, UspA family; Evidence 2b: Function of strongly homologous gene; factor.
  
  
 0.568
ycgA
Putative integral inner membrane protein; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pm: putative membrane component.
 
     0.526
yhaU
Transporter involved in K+ efflux; Potassium/proton antiporter that mediates the efflux of potassium ions from the cell. Can also mediate rubidium/proton antiport, but has no permeability for sodium or lithium ions. In the absence of KhtT, does not have antiport activity, but can catalyze potassium efflux. Involved in protection of the cell from methylglyoxal, a toxic by-product of glycolysis, via activation by S-lactoyl-BSH of the antiporter activity, leading to cytoplasmic acidification and methylglyoxal resistance ; Belongs to the monovalent cation:proton antiporter 2 (CPA2) transpo [...]
      
 0.523
mrpG
Non essential component of Na+/H+ antiporter; May enhance MrpA stability, assembly, or function. May play chaperone or assembly roles for MrpA and perhaps for other mrp proteins.
      
 0.497
mrpA
Sodium transporter component of a Na+/H+ antiporter; Mrp complex is a Na(+)/H(+) antiporter that is considered to be the major Na(+) excretion system in B.subtilis. Has a major role in Na(+) resistance and a minor role in Na(+)- and K(+)-dependent pH homeostasis as compared to TetB. MrpA may be the actual Na(+)/H(+) antiporter, although the six other Mrp proteins are all required for Na(+)/H(+) antiport activity and Na(+) resistance. MrpA is required for initiation of sporulation when external Na(+) concentration increases. Also transports Li(+) but not K(+), Ca(2+) or Mg(2+). Belongs [...]
      
 0.451
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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