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
sigDProbable alternative RNA polymerase sigma-D factor SigD; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by an anti-sigma factor until released by regulated intramembrane proteolysis. (212 aa)    
Predicted Functional Partners:
rsdA
Unknown alanine and proline rich protein; An anti-sigma factor for extracytoplasmic function (ECF) sigma factor SigD. ECF sigma factors are held in an inactive form by an anti-sigma factor until released by regulated intramembrane proteolysis (RIP). RIP occurs when an extracytoplasmic signal triggers a concerted proteolytic cascade to transmit information and elicit cellular responses. The membrane-spanning regulatory substrate protein is first cut extracytoplasmically (site-1 protease, S1P), then within the membrane itself (site-2 protease, S2P), while cytoplasmic proteases finish deg [...]
 
 
 
 0.999
sigM
Possible alternative RNA polymerase sigma factor SigM; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by an anti-sigma factor (RsaM, AC L7N5D7) until released by regulated intramembrane proteolysis (Probable). This sigma factor is required for the synthesis of surface or secreted molecules.
  
  
 0.894
sigH
Alternative RNA polymerase sigma-E factor (sigma-24) SigH (RPOE); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by a cognate anti-sigma factor (RshA) until released. This sigma factor is involved in heat shock and oxidative stress responses; it positively regulates the expression of itself, sigE, sigB and a number of transcriptional regulators as well as other effectors of heat and oxidative stress, leading to direct and ind [...]
  
   
 0.853
sigF
Alternative RNA polymerase sigma factor SigF; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Held in an inactive form by a cognate anti-sigma factor RsbW (UsfX) until released. Increased expression decreases growth rate, and after 3 days increases the expression of 51 loci encoding 33 protein- coding genes as well as some non-coding RNA.
  
  
 0.824
sigG
Probable alternative RNA polymerase sigma factor SigG (RNA polymerase ECF type sigma factor); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by a cognate anti-sigma factor until released, although no anti-sigma factor is known for this protein. May be involved in host intracellular survival after infection (strains H37Rv and CDC 1551). A role in the SOS response is controversial; it has been seen in strain CDC 1551 but not i [...]
 
  
 0.809
sigB
RNA polymerase sigma factor SigB; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. A non-essential principal sigma factor that responds to cell envelope stress and hypoxia. Controls a regulon of about 40 genes, with another 100 genes expression being altered during SDS stress and about 50 gene being altered during diamide (oxidative) stress.
  
  
 0.797
Rv2721c
Rv2721c, (MTCY05A6.42c, MTCY154.01c), len: 699 aa. Possible conserved transmembrane ala-, gly-rich protein,equivalent to Q49837|ML1002|U2235I possible conserved membrane protein from Mycobacterium leprae (687 aa), FASTA scores: opt: 2703, E(): 6.6e-135, (60.3% identity in 713 aa overlap). Shows some similaity to Q01377|CSP1 PS1 protein precursor (secreted protein) from Corynebacterium glutamicum (Brevibacterium flavum) (657 aa), FASTA scores: opt: 276, E(): 3.8e-07, (29.4% identity in 272 aa overlap); and Q9KIJ0 Rv2721c-like protein from Mycobacterium paratuberculosis (246 aa), FASTA s [...]
   
    0.785
sigI
Possible alternative RNA polymerase sigma factor SigI; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by a cognate anti-sigma factor until released, although no anti-sigma factor is known for this protein (By similarity).
  
  
 0.783
Rv3415c
Rv3415c, (MTCY78.14), len: 275 aa. Conserved hypothetical protein, equivalent to Q9CCV3|ML0383 hypothetical protein from Mycobacterium leprae (281 aa),FASTA scores: opt: 1278, E(): 4.2e-71, (73.5% identity in 279 aa overlap). Also some similarity with P71677|RIBD_MYCTU|RIBG|Rv1409|MT1453|MTCY21B4.26 riboflavin biosynthesis protein R (339 aa), FASTA scores: opt: 143,E(): 0.13, (28.25% identity in 184 aa overlap). A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al., 2004).
  
    0.783
pirG
Exported repetitive protein precursor PirG (cell surface protein) (EXP53); Surface-exposed protein required for multiplication and intracellular growth; To M.leprae 28 kDa antigen.
  
  
 0.778
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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