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
rshAAnti-sigma factor RshA; An redox-regulated anti-sigma factor for extracytoplasmic function (ECF) sigma factor SigH. ECF sigma factors are held in an inactive form by a cognate anti-sigma factor. RshA and some peptides derived from it inhibit the sigma factor activity of SigH. Probably releases SigH during oxidative stress. (101 aa)    
Predicted Functional Partners:
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 [...]
  
 
 0.999
Rv3222c
Rv3222c, (MTCY07D11.04), len: 183 aa. Hypothetical protein, with some similarity to Q9SZD2|F19B15.50|AT4G29020 glycine-rich protein like from Arabidopsis thaliana (Mouse-ear cress) (158 aa), FASTA scores: opt: 131, E(): 0.77, (33.35% identity in 126 aa overlap); Q9S222|SCI51.18 putative transcriptional regulator from Streptomyces coelicolor (548 aa), FASTA scores: opt: 133, E(): 1.6,(36.25% identity in 149 aa overlap); etc. Also some similarity to other hypothetical Mycobacterium tuberculosis proteins e.g. O06292|Rv0341|MTCY13E10.01 (479 aa), FASTA scores: opt: 141, E(): 0.5, (31.2% id [...]
  
    0.978
trxB2
Rv3913, (MT4032, MTV028.04), len: 335 aa. Probable trxB2, thioredoxin reductase (see citation below),equivalent to O30973|TRXB_MYCSM thioredoxin reductase from Mycobacterium smegmatis (311 aa), FASTA scores: opt: 1575,E(): 1.8e-87, (78.35% identity in 305 aa overlap); and highly similar, but shorter at C-terminus, to P46843|TRXB_MYCLE|TRXB/a|TRX|ML2703 bifunctional thioredoxin reductase/thioredoxin from Mycobacterium leprae (458 aa), FASTA scores: opt: 1766, E(): 8.7e-99, (83.25% identity in 328 aa overlap). Also highly similar to many e.g. P52215|TRXB_STRCO|SCH24.12 from Streptomyces [...]
  
  
 0.791
TB7.3
Biotinylated protein TB7.3; Rv3221c, (MTCY07D11.05), len: 71 aa. TB7.3,Biotinylated protein (see citations below), equivalent (appears to have one additional residue) to Q9CCH9|ML0802|BTB7_MYCLE biotinylated protein TB7.3 homolog from Mycobacterium leprae (70 aa), FASTA scores: opt: 367,E(): 4e-18, (90.0% identity in 70 aa overlap); Q9XCD6|BTB7_MYCSM biotinylated protein TB7.3 homolog from Mycobacterium smegmatis (70 aa), FASTA scores: opt: 341,E(): 2.1e-16, (84.05% identity in 69 aa overlap). Similar to C-terminal part of various proteins e.g. Q9HPP8|ACC|VNG1532G biotin carboxylase fr [...]
  
    0.728
Rv3224
Rv3224, (MTCY07D11.02c), len: 282 aa. Probable iron-regulated oxidoreductase, possible short-chain dehydrogenase/reductase, highly similar to BAB49551|MLL2413 hypothetical protein from Rhizobium loti (Mesorhizobium loti) (288 aa), FASTA scores: opt: 1053, E(): 6.4e-59,(57.95% identity in 276 aa overlap); Q9AB34|CC0400 short chain dehydrogenase family protein from Caulobacter crescentus (285 aa), FASTA scores: opt: 1051, E(): 8.5e-59,(55.9% identity in 281 aa overlap); and Q9VB10|CG5590 hypothetical protein (similar to the short-chain dehydrogenases/reductases (SDR) family) from Drosoph [...]
  
    0.720
Rv3224B
Rv3224B, len: 72 aa. Conserved hypothetical protein (possibly gene fragment), similar to C-terminal part of ML0799|AL583919_131 conserved hypothetical protein from Mycobacterium leprae (135 aa), FASTA scores: opt: 229, E(): 2e-09, (60.00% identity in 70 aa overlap). Note that downstream ORF Rv3224A is similar to N-terminus of ML0799. There appears to be no frameshift as sequence is identical in strain CDC1551 and in Mycobacterium bovis. Predicted to be an outer membrane protein (See Song et al., 2008).
  
    0.719
pknB
Transmembrane serine/threonine-protein kinase B PknB (protein kinase B) (STPK B); Protein kinase that regulates many aspects of mycobacterial physiology, and is critical for growth in vitro and survival of the pathogen in the host. Is a key component of a signal transduction pathway that regulates cell growth, cell shape and cell division via phosphorylation of target proteins such as GarA, GlmU, PapA5, PbpA, FhaB (Rv0019c), FhaA (Rv0020c), MviN, PstP, EmbR, Rv1422, Rv1747 and RseA. Also catalyzes the phosphorylation of the core proteasome alpha-subunit (PrcA), and thereby regulates th [...]
  
 
 0.718
moeB1
Probable adenylyltransferase/sulfurtransferase MoeZ; Catalyzes the conversion of the sulfur carrier protein CysO to CysO-thiocarboxylate. The reaction is thought to proceed in two steps: first, ATP-dependent activation of CysO as acyl-adenylate (CysO- COOAMP), followed by sulfur transfer to give CysO-thiocarboxylate (CysO-COSH) (Probable). The sulfur source is unknown.
  
    0.704
sigE
Alternative RNA polymerase sigma factor SigE; 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. Responds to heat shock and surface stress (detergent exposure). When combined with isolated core RNA polymerase from M.smegmatis is able to guide initiation from the sigB promoter. Required for full expression of sigB, and for sigB induction after detergent exposure but not after heat shock. Con [...]
  
 
 0.701
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.
 
 
 0.686
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 (26%) [HD]