STRINGSTRING
glnE glnE glnA2 glnA2 glnA1 glnA1 glnD glnD glnB glnB gltB gltB caeB caeB rbpA rbpA caeA caeA Rv2681 Rv2681 Rv1830 Rv1830
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
glnEGlutamate-ammonia-ligase adenylyltransferase GlnE (glutamine-synthetase adenylyltransferase); 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 r [...] (994 aa)    
Predicted Functional Partners:
glnA2
Probable glutamine synthetase GlnA2 (glutamine synthase) (GS-II); 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 also 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 gene [...]
  
  
 0.975
glnA1
Glutamine synthetase GlnA1 (glutamine synthase) (GS-I); Involved in nitrogen metabolism via ammonium assimilation. Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia. Also able to use GTP. D-glutamate is a poor substrate, and DL-glutamate shows about 50% of the standard specific activity. Also plays a key role in controlling the ammonia levels within infected host cells and so contributes to the pathogens capacity to inhibit phagosome acidification and phagosome-lysosome fusion. Involved in cell wall biosynthesis via the production of the major component p [...]
 
  
 0.973
glnD
Bifunctional uridylyltransferase/uridylyl-removing enzyme; Modifies, by uridylylation and deuridylylation, the PII regulatory protein (GlnB), 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 protein 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 protein, and plays an important role in the regulation of nitrogen assimilation and metabolism (Probable).
 
  
 0.893
glnB
Probable nitrogen regulatory protein P-II GlnB; In nitrogen-limiting conditions, when the ratio of Gln to 2- ketoglutarate decreases, P-II is uridylylated to P-II-UMP. P-II-UMP allows the deadenylation of glutamine synthetase (GS), thus activating the enzyme. Conversely, in nitrogen excess P-II is deuridylated and promotes the adenylation of GS. P-II indirectly controls the transcription of the GS 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 (By si [...]
 
 
 0.829
gltB
Glutamate synthase [NADPH] large chain; Rv3859c, (MTCY01A6.09), len: 1527 aa. Probable gltB,ferredoxin-dependent glutamate synthase large subunit,equivalent to Q9CDD5|GLTB|ML0061 putative ferredoxin-dependent glutamate synthase from Mycobacterium leprae (1527 aa), FASTA scores: opt: 9277, E(): 0, (90.25% identity in 1527 aa overlap). Also highly similar to many e.g. Q9S2Y9|SC3A3.04c from Streptomyces coelicolor (1514 aa), FASTA scores: opt: 5939, E(): 0, (64.3% identity in 1544 aa overlap); Q9Z465|GLTB from Corynebacterium glutamicum (Brevibacterium flavum) (1510 aa), FASTA scores: opt [...]
  
  
 0.763
caeB
Probable exported protease; Catalyzes the cleavage of ester bonds. Esterase activity increases with increasing carbon chain length of the substrate (Potential).
  
  
 0.747
rbpA
Conserved protein; Binds to RNA polymerase (RNAP), stimulating and stabilizing the formation of stable RNAP promoter complexes up to 2-fold from principal sigma factor SigA-dependent but not alternative sigma factor SigF-dependent promoters. Increases the affinity of core RNAP for SigA, increasing the transcriptional activity of RNAP. Unlike the case in M.smegmatis or S.coelicolor, has no effect on rifampicin inhibition of transcription. Has no effect on E.coli RNAP. Belongs to the RNA polymerase-binding protein RbpA family.
  
    0.708
caeA
Probable carboxylesterase CaeA; Involved in virulence. Catalyzes the cleavage of ester bonds. Esterase activity increases with increasing carbon chain length of the substrate.
     
 0.707
Rv2681
Rv2681, (MTCY05A6.02), len: 438 aa. Conserved hypothetical ala-rich protein, equivalent to Q50004|ML1040|U1764U hypothetical protein from Mycobacterium leprae (429 aa), FASTA scores: opt: 2146,E(): 1.1e-119, (77.4% identity in 416 aa overlap). Also highly similar to O69858|SC1C3.16c hypothetical 42.5 KDA protein from Streptomyces coelicolor (394 aa), FASTA scores: opt: 1336, E(): 9e-72, (51.6% identity in 405 aa overlap); and with some similarity to ribonucleases D e.g. Q983F2|MLL8354 from Rhizobium loti (Mesorhizobium loti) (383 aa), FASTA scores: opt: 379, E(): 3.9e-15, (31.6% identi [...]
  
    0.691
Rv1830
Rv1830, (MTCY1A11.13c), len: 225 aa. Conserved hypothetical protein, equivalent to Mycobacterium leprae hypothetical protein MLCB1788.33c|AL008609|O32916 (231 aa),FASTA scores: opt: 1307, E(): 0, (89.6% identity in 231 aa overlap).
  
    0.639
Your Current Organism:
Mycobacterium tuberculosis H37Rv
NCBI taxonomy Id: 83332
Other names: M. tuberculosis H37Rv, Mycobacterium sp. H37Rv, Mycobacterium tuberculosis str. H37Rv, Mycobacterium tuberculosis strain H37Rv
Server load: low (28%) [HD]