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:
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[Homology]
Score
narSPossible two component sensor kinase; Member of the two-component regulatory system NarS/NarL involved in gene expression during aerobic nitrate metabolism. Plays therefore a crucial role in anaerobic survival of mycobacteria in host. 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 NarL. In turn, NarL binds to the upstream promoter regions of target genes to regulate their expression during aerobic nitrate metabolism. (425 aa)    
Predicted Functional Partners:
narL
Possible nitrate/nitrite response transcriptional regulatory protein NarL; Member of the two-component regulatory system NarS/NarL that regulates genes involved in aerobic nitrate metabolism. Upon phosphorylation by NarS, functions as a transcription regulator by direct binding to promoter regions of target genes together with DevR to regulate their expression during aerobic nitrate metabolism.
 
 
 0.987
devR
Two component transcriptional regulatory protein DevR (probably LuxR/UhpA-family); Member of the two-component regulatory system DevR/DevS (also called DosR/DosS) involved in onset of the dormancy response. Regulates an approximately 48-member regulon. When phosphorylated binds and activates the promoter of DevR regulon genes in response to hypoxia. The presence of target DNA increases stability of phospho-DevR in vitro. Activates its own transcription under hypoxic but not aerobic conditions, probably binds as a dimer to tandem binding sites within the devR and hspX promoters. Accepts [...]
 
 
 0.884
Rv0195
Rv0195, (MTV033.03), len: 211 aa. Possible two-component response regulator, luxR family, similar to many e.g. U00008|ECOHU49_15 regulatory protein narP from Escherichia coli strain K12 (225 aa), FASTA scores: opt: 232, E(): 7.3e-09, (29.2% identity in 219 aa overlap). Start chosen by similarity. Contains probable helix-turn-helix motif at aa 166-187 (Score 1164, +3.15 SD).
 
 
 0.839
Rv2047c
Rv2047c, (MTV018.34c), len: 854 aa. Conserved hypothetical protein, similar to many. Contains IPR016040 NAD(P)-binding domain at N-terminus; Belongs to the PEP-utilizing enzyme family.
 
  
 0.625
Rv0818
Transcriptional regulatory protein; Rv0818, (MTV043.10), len: 255 aa. Probable transcriptional regulatory protein, highly similar to Q05943|GLNR_STRCO|L03213|STMGLNR_1|SCD84.26c transcriptional regulatory protein from Streptomyces coelicolor (267 aa), FASTA scores: opt: 945, E(): 0, (61.5 identity in 239 aa overlap); and similar to others from other organisms. Also similar to Rv2884|MTCY274.15|Z74024 from Mycobacterium tuberculosis (252 aa), FASTA scores: opt: 662, E(): 0, (47.8% identity in 226 aa overlap).
  
 
 0.617
Rv1006
Unknown protein; Rv1006, (MTCI237.23), len: 567 aa. Unknown protein. Predicted to be an outer membrane protein (See Song et al.,2008).
  
    0.617
Rv2884
Rv2884, (MTCY274.15), len: 252 aa. Probable transcriptional regulatory protein, highly similar to others e.g. Q05943|GLNR_STRCO|SCD84.26c transcriptional regulatory protein from Streptomyces coelicolor (267 aa),FASTA scores: opt: 609, E(): 2.7e-34, (46.4% identity in 224 aa overlap); Q55733|SLL0396 regulatory components of sensory transduction system from Synechocystis sp. strain PCC 6803 (224 aa), FASTA scores: opt: 330, E(): 3e-15,(31.8% identity in 217 aa overlap); Q9A4S3|CC2757 DNA-binding response regulator from Caulobacter crescentus (223 aa), FASTA scores: opt: 311, E(): 6e-14, [...]
  
 
 0.617
Rv0890c
Rv0890c, (MTCY31.18c), len: 882 aa. Probable transcriptional regulatory protein, LuxR family, highly similar (but shorter 238 aa in N-terminus) to NP_302202.1|NC_002677 possible transcriptional regulator from Mycobacterium leprae (1106 aa). Also highly similar (generally in part) to others e.g. T50568 probable multi-domain regulatory protein from Streptomyces coelicolor (1334 aa); P10957|NARL_ECOLI nitrate/nitrite response regulator protein from Escherichia coli (216 aa),FASTA scores: opt: 193, E(): 6e-06, (37.4% identity in 99 aa overlap); etc. Also highly similar to others from Mycob [...]
 
 
 0.592
Rv1358
Rv1358, (MTCY02B10.22), len: 1159 aa. Probable transcriptional regulatory protein, some similarity to AFSR_STRCO|P25941 regulatory protein afsr from Streptomyces coelicolor (993 aa), FASTA scores: opt: 210, E(): 5.5e-06,(27.5% identity in 739 aa overlap). Similar also to Rv0890C|MTCY31.18c (65.5% identity in 884 aa overlap) and to Rv1359|MTCY02B10.23 (43.7% identity in 197 aa overlap). Contains PS00017 ATP/GTP-binding site motif A, PS00622 Bacterial regulatory proteins, luxR family signature. Helix turn helix motif present at aa 1116-1137, (Score 1291,+3.59 SD).
 
 
 0.574
Rv0386
Rv0386, (MTV036.21), len: 1085 aa. Probable regulatory protein, LuxR/uhpA family, highly similar to CAC30706.1|AL583923 possible transcriptional regulator from Mycobacterium leprae (1106 aa). Also similar in part to other regulatory proteins e.g. CAB95788.1|AL359949 putative multi-domain regulatory protein from Streptomyces coelicolor (780 aa); N-terminus of CAB92369.1|AL356612 putative AfsR-like regulatory protein from Streptomyces coelicolor (1114 aa); N-terminus of NP_107139.1|14026327|BAB52925.1|AP003009 transcriptional regulator from Mesorhizobium loti (952 aa); AFSR_STRCO|P25941 [...]
 
 
 0.572
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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