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
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Textmining
[Homology]
Score
sigFAlternative 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. (261 aa)    
Predicted Functional Partners:
rsbW
Anti-sigma factor RsbW (sigma negative effector); A cognate anti-sigma factor for alternative sigma factor SigF. Alternative sigma factors are held in an inactive form by an anti-sigma factor. Binds ATP and GTP, may hydrolyze both.
 
 
 0.998
Rv1364c
Rv1364c, (MTCY02B10.28c), len: 653 aa. Possible sigma factor regulatory protein, some similarity to RSBU_BACSU|P40399 sigma factor sibg regulation protein from Bacillus subtilis (335 aa), FASTA scores: opt: 224, E(): 2e-07, (25.8% identity in 244 aa overlap). Also known as mursiF.
 
 
 0.976
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.
  
 
 0.937
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.
  
 
 0.931
Rv0516c
Possible anti-anti-sigma factor; Rv0516c, (MTCY20G10.06c), len: 158 aa. Possible anti-anti-sigma factor, showing some similarity to Rv1365c|MTCY02B10_29 from Mycobacterium tuberculosis (128 aa), FASTA scores: E(): 0.0012, (27.4% identity in 124 aa overlap).
  
 
 0.891
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 [...]
  
  
 0.889
sigL
Probable alternative RNA polymerase sigma factor SigL; 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. Over-expression of SigL induces 19-28 genes including polyketide synthases, secreted and membrane proteins. Might play a minor role in regulating SigB.
  
  
 0.868
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.
   
 
 0.839
sigD
Probable 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.
  
  
 0.824
sigC
RNA polymerase sigma factor, ECF subfamily, SigC; 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 usually held in an inactive form by an anti-sigma factor until released by regulated intramembrane proteolysis; this sigma factor does not seem to have a cognate anti-sigma factor however. It has been suggested that the sigma domains 2 and 4 may interact via polar residues in this protein to autoregulate. Positively regulates expression of a small regulon [...]
  
  
 0.809
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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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.