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
naiPNiacin permease; Probably involved in the uptake of amidated and deamidated forms of niacin. Increases the growth rate of E.coli that is unable to make niacin de novo; confers increased sensitivity to the toxic niacin analog 6-amino-nicotinamide to wild-type E.coli. There is probably another mechanism for niacin uptake. (400 aa)    
Predicted Functional Partners:
yceG
Conserved hypothetical protein; Evidence 4: Homologs of previously reported genes of unknown function.
  
  
 0.909
yceH
Conserved hypothetical protein; Evidence 4: Homologs of previously reported genes of unknown function; Belongs to the TelA family.
  
  
 0.872
niaR
Transcriptional repressor of de novo NAD biosynthesis; In the presence of nicotinic acid represses transcription of the nadBCA and nifS-nadR operons. Also binds to DNA upstream of the niaP gene, probably regulating it as well. May bind nicotinic acid.
 
  
 0.698
yaaN
Conserved hypothetical protein; Evidence 4: Homologs of previously reported genes of unknown function; PubMedId: 12533473; Belongs to the TelA family.
      
 0.683
ypzK
Putative acetyltransferase; Involved in riboflavin biosynthesis.
  
   
 0.508
putM
Proline dehydrogenase 1; Converts proline to delta-1-pyrroline-5-carboxylate.
   
  
 0.489
nadA
Quinolinate synthetase; Catalyzes the condensation of iminoaspartate with dihydroxyacetone phosphate to form quinolinate.
   
  
 0.470
yceF
Putative stress adaptation transporter; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pt: putative transporter.
 
    0.461
nadB
L-aspartate oxidase; Catalyzes the oxidation of L-aspartate to iminoaspartate.
   
  
 0.461
pncB
Nicotinate phosphoribosyltransferase; Catalyzes the synthesis of beta-nicotinate D-ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate at the expense of ATP; Belongs to the NAPRTase family.
  
  
 0.417
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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