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
amtProbable ammonium-transport integral membrane protein Amt; Involved in the uptake of ammonia; Belongs to the ammonia transporter channel (TC 1.A.11.2) family. (477 aa)    
Predicted Functional Partners:
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 [...]
 
 0.999
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 [...]
 
  
 0.947
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).
 
  
 0.937
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 [...]
  
  
 0.767
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 [...]
  
  
 0.748
glnA4
Rv2860c, (MTV003.06c), len: 457 aa. Probable glnA4,glutamine synthetase class II, similar to many glutamine synthases e.g. O88070|SCI35.35c from Streptomyces coelicolor (462 aa), FASTA scores: opt: 1947, E(): 8.2e-120, (64.15% identity in 452 aa overlap); Q98H15|MLL3074 from Rhizobium loti (Mesorhizobium loti) (465 aa), FASTA scores: opt: 1321, E(): 7.8e-79, (46.7% identity in 452 aa overlap); Q98EM0|MLL4187 from Rhizobium loti (Mesorhizobium loti) (456 aa), FASTA scores: opt: 698,E(): 4.6e-38, (33.5% identity in 454 aa overlap); Q9CDL9|GLNA from Lactococcus lactis (subsp. lactis) (Str [...]
  
  
 0.744
ftsY
Probable cell division protein FtsY (SRP receptor) (signal recognition particle receptor); Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Acts as a receptor for the complex formed by the signal recognition particle (SRP) and the ribosome-nascent chain (RNC).
  
  
 0.673
Rv2923c
Conserved protein; Rv2923c, (MTCY338.12c), len: 137 aa. Conserved protein, showing similarity with other hypothetical proteins e.g. P24246|YHFA_ECOLI|B3356|Z4717|ECS4207 from Escherichia coli strains K12 and O157:H7 (134 aa), FASTA scores: opt: 110, E(): 1.9, (25.9% identity in 135 aa overlap); etc.
  
    0.655
glnA3
Rv1878, (MTCY180.40c), len: 450 aa. Probable glnA3,glutamine synthetase class I, similar to many e.g. GLNA_BACCE|P19064 from Bacillus cereus (443 aa), FASTA results: opt: 497, E(): 5.2e-23, (29.0% identity in 331 aa overlap); etc. Also similar to C-terminus of FLUG_EMENI|P38094 flug protein from emericella nidulans (865 aa), FASTA scores: opt: 227, E (): 6.4e-13, (29.9% identity in 394 aa overlap). Note that the downstream ORF MTCY180.39c is similar to the N-terminus. Also similar to three other potential glutamine synthases in M. tuberculosis: Q10378|GLN2_MYCTU|GLNA2|Rv2222c|MT2280|MT [...]
  
  
 0.647
smc
Probable chromosome partition protein Smc; Required for chromosome condensation and partitioning. Belongs to the SMC family.
     
 0.627
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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