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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Gene Fusion
Cooccurrence
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Experiments
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[Homology]
Score
glnBRegulatory protein (P-II) for nitrogen assimilation by glutamine synthetase (ATase); P-II indirectly controls the transcription of the glutamine synthetase gene (GlnA). P-II prevents NR-II-catalyzed conversion of NR- I to NR-I-phosphate, the transcriptional activator of GlnA. When P-II is uridylylated to P-II-UMP, these events are reversed. When the ratio of Gln to 2-ketoglutarate decreases, P-II is uridylylated to P-II-UMP, which causes the deadenylation of glutamine synthetase by GlnE, so activating the enzyme (By similarity). (112 aa)    
Predicted Functional Partners:
amtB
Putative Amt family, ammonium transport protein; Similar to E. coli probable ammonium transporter (AAC73554.1); Blastp hit to AAC73554.1 (428 aa), 92% identity in aa 1 - 428.
 
 0.999
glnD
Uridylyltransferase; Modifies, by uridylylation and deuridylylation, the PII regulatory proteins (GlnB and homologs), in response to the nitrogen status of the cell that GlnD senses through the glutamine level. Under low glutamine levels, catalyzes the conversion of the PII proteins and UTP to PII-UMP and PPi, while under higher glutamine levels, GlnD hydrolyzes PII-UMP to PII and UMP (deuridylylation). Thus, controls uridylylation state and activity of the PII proteins, and plays an important role in the regulation of nitrogen assimilation and metabolism.
 
 
 0.998
glnL
Sensory histidine kinase/phosphatase NtrB; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Under conditions of nitrogen limitation, NtrB autophosphorylates and transfers the phosphoryl group to NtrC. In the presence of nitrogen, acts as a phosphatase that dephosphorylates and inactivates NtrC.
  
 0.998
glnG
EBP family response regulator in two-component regulatory system with GlnL; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Phosphorylated NtrC binds directly to DNA and stimulates the formation of open promoter-sigma54-RNA polymerase complexes.
   
 
 0.908
yfhG
Putative transcriptional regulator of two-component regulator protein (EBP familiiy); EBP family; similar to E. coli putative alpha helix protein (AAC75608.1); Blastp hit to AAC75608.1 (237 aa), 63% identity in aa 1 - 234.
     
 0.900
glnA
Glutamine synthetase; Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia.
 
  
 0.870
yfhA
EBP family; similar to E. coli putative 2-component transcriptional regulator (AAC75607.1); Blastp hit to AAC75607.1 (444 aa), 95% identity in aa 1 - 444.
  
 
 0.815
yfhK
Putative sensory kinase in regulatory system; Similar to E. coli putative 2-component sensor protein (AAC75609.1); Blastp hit to AAC75609.1 (496 aa), 87% identity in aa 19 - 496.
     
 0.811
glnK
Regulatory protein P-II 2; Nitrogen assimilation by glutamine synthetase; regulates GlnL (NRII) and GlnE (ATase); similar to E. coli nitrogen regulatory protein P-II 2 (AAC73553.1); Blastp hit to AAC73553.1 (112 aa), 97% identity in aa 1 - 112.
  
 
 
0.687
gltB
Similar to E. coli glutamate synthase, large subunit (AAC76244.1); Blastp hit to AAC76244.1 (1517 aa), 95% identity in aa 32 - 1517.
  
  
 0.652
Your Current Organism:
Salmonella enterica Typhimurium
NCBI taxonomy Id: 99287
Other names: S. enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium LT2, Salmonella enterica subsp. enterica serovar Typhimurium str. LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2, Salmonella enterica subsp. enterica serovar Typhimurium strain LT2-LTL2, Salmonella typhimurium LT2
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