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
glnJTwo-component sensor histidine kinase [GlnL] for glutamine degradation; Member of the two-component regulatory system GlnK/GlnL that positively regulates the expression of the glsA-glnT operon in response to glutamine. It seems that autophosphorylated GlnK transfers a phosphoryl group to GlnL, which positively regulates the expression of the glsA-glnT operon. Interaction between GlnK-AmtB complex and TnrA protects TnrA from proteolytic degradation. (410 aa)    
Predicted Functional Partners:
glnL
Two-component response regulator [GlnJ] for glutamine utilisation; Member of the two-component regulatory system GlnL/GlnK that positively regulates the expression of the glsA-glnT operon in response to glutamine. GlnL binds the promoter region of glsA-glnT in vitro.
 
 0.999
glsA
Glutaminase; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme.
    
 0.910
glnT
Glutamine transporter; Probably functions as a sodium/glutamine symporter for glutamine uptake; Belongs to the alanine or glycine:cation symporter (AGCS) (TC 2.A.25) family.
     
 0.899
tnrA
Nitrogen sensing transcriptional regulator; Transcription regulator that actives the transcription of genes required for nitrogen assimilation such as nrgAB (ammonium transport), nasABCDEF (nitrate/nitrite assimilation), ureABC (urea degradation) and gabP (GABA transport), during nitrogen limitation. Also represses glnRA and gltAB in the absence of ammonium. On the contrary of the MerR members, which require longer DNA sites for high-affinity binding, TnrA requires a DNA sequence of 17 nucleotides as minimal binding site.
    
   0.849
glnQ
Glutamine ABC transporter (ATP-binding protein); Part of the ABC transporter complex GlnHMPQ involved in glutamine transport. Probably responsible for energy coupling to the transport system (By similarity).
      
 0.706
cheV
Coupling protein and response regulator for CheA activity in response to attractants (chemotaxis); Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. Chemotaxis involves both a phosphorylation-dependent excitation and a methylation-dependent adaptation. CheV and CheW are involved in the coupling of the methyl- accepting chemoreceptors to the central two-component kinase CheA; they are both necessary for efficient chemotaxis. Moreover, CheA-dependent phosphorylation of CheV is required for adaptation to attractants during B.subtilis chemotaxis.
 
 
 
 0.616
rbsB
Ribose ABC transporter (ribose-binding lipoprotein); Part of the ABC transporter complex RbsABC involved in ribose import. Binds ribose.
    
 
 0.590
yusP
Putative multidrug-efflux transporter; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pt: putative transporter.
      
 0.578
glnA
Glutamine synthetase; Glutamine synthetase (GS) is an unusual multitasking protein that functions as an enzyme, a transcription coregulator, and a chaperone in ammonium assimilation and in the regulation of genes involved in nitrogen metabolism. It catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia. Feedback-inhibited GlnA interacts with and regulates the activity of the transcriptional regulator TnrA. During nitrogen limitation, TnrA is in its DNA- binding active state and turns on the transcription of genes required for nitrogen assimilation. Under condi [...]
   
 
 0.558
pksN
Polyketide synthase of type I; Involved in some intermediate steps for the synthesis of the antibiotic polyketide bacillaene which is involved in secondary metabolism.
  
 
 0.534
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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