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prrA prrA prrB prrB senX3 senX3 Rv0600c Rv0600c trcS trcS tcrY tcrY mprB mprB mtrB mtrB phoR phoR Rv1019 Rv1019 pafB pafB
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Known Interactions
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experimentally determined
Predicted Interactions
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gene co-occurrence
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textmining
co-expression
protein homology
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prrATwo component response transcriptional regulatory protein PrrA; Member of the two-component regulatory system PrrB/PrrA that is involved specifically in early intracellular multiplication of Mycobacterium and is essential for its viability. Upon phosphorylation by PrrB, functions as a transcription regulator by direct binding to promoter regions of target genes to positively regulate their expression. Autoregulates its own expression. (236 aa)    
Predicted Functional Partners:
prrB
Two component sensor histidine kinase PrrB; Member of the two-component regulatory system PrrB/PrrA that is involved specifically in early intracellular multiplication of Mycobacterium and is essential for its viability. Functions as a sensor protein kinase which is autophosphorylated at a histidine residue and transfers its phosphate group to the conserved aspartic acid residue in the regulatory domain of PrrA. In turn, PrrA binds to the upstream promoter regions of target genes including itself to positively regulate their expression.
 
 0.999
senX3
Putative two component sensor histidine kinase SenX3; Probably forms part of a two-component regulatory system SenX3/RegX3. Phosphorylates RegX3 (Probable).
 
 0.921
Rv0600c
Two component sensor kinase [second part]; Member of the three-protein two-component system HK1/HK2/TcrA. Kinase that binds ATP and catalyzes the transfer of a phosphoryl group from ATP to HK2.
 
 
 0.914
trcS
Rv1032c, (MTCY10G2.17), len: 509 aa. TrcS, two component sensor histidine kinase protein (see citations below), similar to YV16_MYCLE|P54883 probable sensor-like histidine kinase from Mycobacterium leprae (443 aa), FASTA scores: opt: 392, E(): 3.8e-18, (31.7% identity in 334 aa overlap). Note that in vitro autophosphorylation of TrcS requires the presence of Mn2+ or Ca2+ as a divalent cation cofactor and subsequent transphosphorylation of TrcR is evident in the presence of TrcS-phosphate and Ca2+.
 
 
 0.903
tcrY
Possible two component sensor kinase TcrY; Member of the two-component regulatory system TcrY/TcrX. Activates TcrX by phosphorylation.
 
 0.901
mprB
Two component sensor kinase MprB; Member of the two-component regulatory system MprB/MprA which contributes to maintaining a balance among several systems involved in stress resistance and is required for establishment and maintenance of persistent infection in the host. In response to environmental signals MprB acts as both a membrane-associated protein kinase that undergoes autophosphorylation and subsequently transfers the phosphate to MprA, and a protein phosphatase that dephosphorylates phospho-MprA. MprB/MprA is involved in regulation of numerous stress-responsive genes, includin [...]
 
 
 0.897
mtrB
Two component sensory transduction histidine kinase MtrB; Member of the two-component regulatory system MtrA/MtrB. Probably functions as a membrane-associated protein kinase that phosphorylates MtrA in response to environmental signals. Autophosphorylates and transfers phosphate to MtrA in vitro. Overexpression of MtrA alone decreases bacterial virulence in mouse infection; co-expression of MtrA and MtrB restores normal bacterial growth, suggesting that bacterial growth in macrophages requires an optimal ratio of MtrB to MtrA. Probably plays a role in cell division.
 
 0.863
phoR
Rv0758, (MTCY369.03), len: 485 aa. Possible phoR,two component system response phosphate sensor kinase membrane-associated, highly similar to various sensor kinases e.g. CAC32361.1|AL583945 putative two component system histidine kinase from Streptomyces coelicolor (524 aa); NP_349365.1|NC_003030 Membrane-associated sensory histidine kinase with HAMP domain from Clostridium acetobutylicum (482 aa); and similar to phoP proteins e.g. NP_372216.1|NC_002758 alkaline phosphatase synthesis sensor protein from Staphylococcus aureus (554 aa); P23545|PHOR_BACSU alkaline phosphatase synthesis se [...]
 
 0.860
Rv1019
Probable transcriptional regulatory protein (probably TetR-family); Rv1019, (MTCY10G2.30c), len: 197 aa. Probable transcriptional regulator, similar to many memebers of the TetR family e.g. MTCY7D11.18c (34.4% identity in 189 aa overlap). Helix turn helix motif from aa 27-48 (+5.42 SD).
   
  
 0.784
pafB
Proteasome accessory factor B PafB; Part of the pafABC operon, however PafB 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.
   
    0.757
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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