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:
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Gene Fusion
Cooccurrence
Coexpression
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[Homology]
Score
glnBNitrogen regulatory protein P-II (glnB); 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:
glnD
Uridylyl transferase (glnD); 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.
 
 
 0.980
mog
Molybdopeterin biosynthesis protein (mog); Catalyzes the adenylation of molybdopterin as part of the biosynthesis of the molybdenum-cofactor.
       0.793
HI_0338
Conserved hypothetical transmembrane protein; Similar to GB:U00096 PID:1787885 percent identity: 42.60; identified by sequence similarity; putative.
       0.773
glnA
Glutamine synthetase (glnA); Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia; Belongs to the glutamine synthetase family.
 
  
 0.552
qseC
Sensor protein (ygiY); Member of a two-component regulatory system QseB/QseC. May activate QseB by phosphorylation (By similarity).
     
 0.552
dgkA
Diacylglycerol kinase (dgkA); Recycling of diacylglycerol produced during the turnover of membrane phospholipid.
       0.550
relA
GTP pyrophosphokinase (relA); In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. This enzyme catalyzes the formation of pppGpp which is then hydrolyzed to form ppGpp (By similarity).
  
    0.532
glnE
Glutamate-ammonia-ligase adenylyltransferase (glnE); Involved in the regulation of glutamine synthetase GlnA, a key enzyme in the process to assimilate ammonia. When cellular nitrogen levels are high, the C-terminal adenylyl transferase (AT) inactivates GlnA by covalent transfer of an adenylyl group from ATP to specific tyrosine residue of GlnA, thus reducing its activity. Conversely, when nitrogen levels are low, the N-terminal adenylyl removase (AR) activates GlnA by removing the adenylyl group by phosphorolysis, increasing its activity. The regulatory region of GlnE binds the signal [...]
 
 
 
 0.519
purL
Phosphoribosylformylglycinamidine synthase (purL); Phosphoribosylformylglycinamidine synthase involved in the purines biosynthetic pathway. Catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) and glutamine to yield formylglycinamidine ribonucleotide (FGAM) and glutamate.
     
 0.445
rraB
Conserved hypothetical protein; Globally modulates RNA abundance by binding to RNase E (Rne) and regulating its endonucleolytic activity. Can modulate Rne action in a substrate-dependent manner by altering the composition of the degradosome.
    
   0.402
Your Current Organism:
Haemophilus influenzae
NCBI taxonomy Id: 71421
Other names: H. influenzae Rd KW20, Haemophilus influenzae KW20, Haemophilus influenzae Rd, Haemophilus influenzae Rd KW20
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