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:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
sigARNA polymerase sigma factor SigA (sigma-A); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the primary sigma factor during exponential growth (Probable); Belongs to the sigma-70 factor family. RpoD/SigA subfamily. (528 aa)    
Predicted Functional Partners:
rpoB
DNA-directed RNA polymerase subunit beta; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
 
 
 0.999
rpoC
DNA-directed RNA polymerase subunit beta; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
 
 
 0.999
rpoZ
DNA-directed RNA polymerase subunit omega; Promotes RNA polymerase assembly. Latches the N- and C- terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits.
  
 
 0.999
whiB7
Probable transcriptional regulatory protein WhiB-like WhiB7; The apo- but not holo-form probably binds DNA (By similarity). Acts as a transcriptional regulator. Probably redox- responsive. Upon overproduction at least 10 other genes are up- regulated, among them are Rv1258c, Rv1988, Rv2301, Rv2416c, Rv2725c and whiB7 itself. Probably redox-responsive. The apo-form has been shown to act as a protein disulfide reductase.
   
   0.999
whiB1
Transcriptional regulatory protein WhiB-like WhiB1. Contains [4FE-4S]2+ cluster; Acts as a transcriptional repressor, inhibiting expression in vitro. Probably redox-responsive. The apo- but not holo-form binds to its own promoter as well as that of groEL2. Oxidized apo-form and nitrosylated holo-form also bind DNA. The apo-form has been shown to act as a protein disulfide reductase , but also not to act as a protein disulfide reductase.
   
 
 0.999
rpoA
DNA-directed RNA polymerase subunit alpha; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
 
 
 0.999
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.
   
 
 0.995
carD
Possible transcription factor; Controls rRNA transcription by binding to the RNA polymerase (RNAP). Required for replication and persistence during infection of mice; Belongs to the CarD family.
  
 
 0.974
Rv2704
Conserved protein; Rv2704, (MTCY05A6.25), len: 142 aa. Conserved protein, highly similar (but shorter 25 aa) to Q9RYB7|DR0033 conserved hypothetical protein from Deinococcus radiodurans (157 aa), FASTA scores: opt: 381,E(): 1.5e-17, (54.85% identity in 124 aa overlap); and highly similar to various proteins e.g. CAC47758|SMC03796 conserved hypothetical protein from Rhizobium meliloti (Sinorhizobium meliloti) (126 aa), FASTA scores: opt: 302,E(): 1.4e-12, (46.6% identity in 126 aa overlap); Q98E55|MLL4402 from Rhizobium loti (Mesorhizobium loti) (130 aa), FASTA scores: opt: 252, E(): 2. [...]
  
  
 0.900
pafC
Proteasome accessory factor C PafC; Part of the pafABC operon, but PafC does not seem to be involved in pupylation or substrate degradation. Appears to play at least a small role in resistance to reactive nitrogen intermediates (RNI) in vitro.
   
   0.871
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 (30%) [HD]