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
pepDRv0983, (MTV044.11), len: 464 aa. Probable pepD (alternate gene name: mtb32b), secreted or membrane serine protease (see citation below), equivalent (but longer 18 aa in N-terminus) to AL035500|MLCL373_17|T45448 probable serine proteinase from Mycobacterium leprae (452 aa), FASTA score: (74.2% identity in 466 aa overlap); and highly similar to others from Mycobacterium leprae. Also highly similar (except in N-terminus) to other proteases e.g. CAC01350.1|AL390975 putative protease from Streptomyces coelicolor (542 aa); NP_440705.1|NC_000911|HtrA serine protease from Synechocystis sp. (4 [...] (464 aa)    
Predicted Functional Partners:
moaB2
MoCF_biosynth domain-containing protein; Rv0984, (MTV044.12), len: 181 aa. Possible moaB2,pterin-4-alpha-carbinolamine dehydratase, highly similar to NP_301253.1|NC_002677 putative molybdenum cofactor biosynthesis protein from Mycobacterium leprae (181 aa),FASTA score: (92.3% identity in 181 aa overlap). Also similar to others e.g. CAB59675.1|AL132674 molybdenum cofactor biosynthesis protein from Streptomyces coelicolor (179 aa); Q56208|MOCB_SYNP7 molybdenum cofactor biosynthesis protein CB from Synechococcus sp. (319 aa),FASTA score: (37.3% identity in 142 aa overlap); C-terminus of N [...]
  
    0.981
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 [...]
 
  
 0.941
Rv2743c
Rv2743c, (MTV002.08c), len: 270 aa. Possible conserved transmembrane ala-rich protein, equivalent to Q49833|MLCB33.04c|B2235_C1_148 unknown protein from Mycobacterium leprae (123 aa), FASTA scores: opt: 639, E(): 3.3e-31, (74.8% identity in 123 aa overlap).
   
  
 0.897
Rv2742c
Rv2742c, (MTV002.07c), len: 277 aa (questionable ORF). Conserved hypothetical arg-rich protein. Extreme N-terminus is highly similar to the N-teminus of Q9CCC1ML0986 hypothetical protein from Mycobacterium leprae (67 aa), FASTA scores: opt: 183, E(): 0.00052, (71.05% identity in 38 aa overlap); and to the downstream ORF O33281|Rv2738c|MTV002.03c conserved hypothetical protein from Mycobacterium tuberculosis (68 aa), FASTA scores: opt: 200, E(): 5.5e-05, (78.4% identity in 37 aa overlap). This region is a possible MT-complex-specific genomic island (See Becq et al., 2007).
   
  
 0.894
mpa
Mycobacterial proteasome ATPase Mpa; ATPase which is responsible for recognizing, binding, unfolding and translocation of pupylated proteins into the bacterial 20S proteasome core particle. May be essential for opening the gate of the 20S proteasome via an interaction with its C-terminus, thereby allowing substrate entry and access to the site of proteolysis. Thus, the C-termini of the proteasomal ATPase may function like a 'key in a lock' to induce gate opening and therefore regulate proteolysis. Is required but not sufficient to confer resistance against the lethal effects of reactiv [...]
   
 0.831
htpX
Rv0563, (MTV039.01, MTCY25D10.42), len: 286 aa. (alternative start at position 654006). Probable htpX,protease heat shock protein X (transmembrane protein),equivalent to NP_302484.1|NC_002677 putative peptidase from Mycobacterium leprae (287 aa). Also highly similar to others e.g. CAC08262.1|AL392146 putative peptidase from Streptomyces coelicolor (287 aa); NP_387431.1|NC_003047 putative protease transmembrane protein from Sinorhizobium meliloti (319 aa); NP_105051.1|NC_002678 heat shock protein (htpX) from Mesorhizobium loti (336 aa); NP_248692.1|NC_000909|U67608|MJU67608_8 heat shock [...]
  
  
 0.819
Rv3671c
Membrane-associated serine protease; Required for M.tuberculosis resistance to oxidative stress in addition to its role in resistance to acid, which is essential for virulence. It protects M.tuberculosis against phagolysosomal concentrations of acid and maintains its intrabacterial pH when phagocytosed by IFN-gamma-activated macrophages.
  
  
 0.796
mprA
Response regulator MprA; 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. Functions as a transcriptional regulator that recognizes a 19-bp nucleotide motif comprizing two loosely conserved 8-bp direct DNA-binding motif repeats separated by a 3-bp spacer region. MprB/MprA is involved in regulation of numerous stress-responsive genes, including up-regulation of two sigma factors, sigE and sigB as well [...]
  
  
 0.790
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.
 
  
 0.788
ppm1
Polyprenol-monophosphomannose synthase Ppm1; Catalyzes the phospholipid dependent N-acylation of the N- terminal cysteine of apolipoprotein, the last step in lipoprotein maturation; In the N-terminal section; belongs to the CN hydrolase family. Apolipoprotein N-acyltransferase subfamily.
  
 
 0.769
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 (28%) [HD]