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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[Homology]
Score
glnA1Glutamine 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 [...] (478 aa)    
Predicted Functional Partners:
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 [...]
  
 
 0.989
glnE
Glutamate-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 [...]
 
  
 0.973
gdh
Probable NAD-dependent glutamate dehydrogenase Gdh (NAD-Gdh) (NAD-dependent glutamic dehydrogenase); Catalyzes the reversible conversion of L-glutamate to 2- oxoglutarate.
   
 
 0.967
nirB
Rv0252, (MTV034.18), len: 853 aa. Probable nirB (alternate gene name: nasB), nitrite reductase [NAD(P)H] large subunit, flavoprotein containing siroheme and a 2FE-2S iron-sulfur centre. Highly similar to many others bacterial enzymes e.g. P08201|NIRB_ECOLI nitrite reductase (NAD(P)H) large subunit from Escherichia coli strain K12 (847 aa), FASTA scores: opt: 2775, E(): 0, (49.8% identity in 840 aa overlap); Q06458|NIRB_KLEPN nitrite reductase (NAD(P)H) large subunit (957 aa), FASTA scores: opt: 2902,E(): 0, (54.2% identity in 827 aa overlap). Contains PS00365 Nitrite and sulfite reduct [...]
    
 0.963
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 [...]
 
  
 0.958
gltD
Glutamate synthase [NADPH] small chain; Rv3858c, (MTCY01A6.10), len: 488 aa. Probable gltD,small subunit of NADH-dependent glutamate synthase,equivalent to Q9CDD4|GLTD|ML0062 NADH-dependent glutamate synthase small subunit from Mycobacterium leprae (488 aa),FASTA scores: opt: 2997, E(): 1e-166, (87.7% identity in 488 aa overlap). Also highly similar to many e.g. Q9S2Z0|SC3A3.03s from Streptomyces coelicolor (487 aa),FASTA scores: opt: 2152, E(): 1.2e-117, (63.85% identity in 487 aa overlap); Q9KPJ3|VC2374 from Vibrio cholerae (489 aa), FASTA scores: opt: 1699, E(): 2.5e-91, (51.75% ide [...]
  
 
 0.953
gadB
Rv3432c, (MTCY77.04c), len: 460 aa. Probable gadB,glutamate decarboxylase, similar to many e.g. P73043|gad|SLL1641 from Synechocystis sp. strain PCC 6803 (467 aa), FASTA scores: opt: 1684, E(): 6.2e-99, (55.35% identity in 457 aa overlap); Q9X8J5|SCE9.23 from Streptomyces coelicolor (475 aa), FASTA scores: opt: 1650,E(): 8.9e-97, (57.4% identity in 446 aa overlap); Q9AQU4|gad from Oryza sativa (Rice) (501 aa), FASTA scores: opt: 1498, E(): 3.7e-87, (51.6% identity in 432 aa overlap); Q07346|DCE_PETHY from Petunia hybrida (Petunia) (500 aa), FASTA scores: opt: 1485, E(): 2.5e-86, (51.15 [...]
  
 
 0.936
glmS
Glutamine--fructose-6-phosphate aminotransferase [isomerizing]; Catalyzes the first step in hexosamine metabolism, converting fructose-6P into glucosamine-6P using glutamine as a nitrogen source.
  
 
 0.931
nirD
Rv0253, (MTV034.19), len: 118 aa. Probable nirD,nitrite reductase [NAD(P)H] small subunit, similar to others e.g. P23675|NIRD_ECOLI|B3366|Z4727|ECS4217 from Escherichia coli strains K12 and O157:H7 (108 aa), FASTA scores: opt: 271, E():1.7e-12, (41.9% identity in 105 aa overlap). Associates with NIRB|Rv0252.
   
 
 0.929
gcvB
Probable glycine dehydrogenase GcvB (glycine decarboxylase) (glycine cleavage system P-protein); The glycine cleavage system catalyzes the degradation of glycine. The P protein binds the alpha-amino group of glycine through its pyridoxal phosphate cofactor; CO(2) is released and the remaining methylamine moiety is then transferred to the lipoamide cofactor of the H protein (By similarity); Belongs to the GcvP family.
   
 
 0.919
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
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