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
vapB20Possible antitoxin VapB20; Antitoxin component of a type II toxin-antitoxin (TA) system. Upon expression in E.coli neutralizes the toxic effect of cognate toxin VapC20. (81 aa)    
Predicted Functional Partners:
vapC20
Possible toxin VapC20; Toxic component of a type II toxin-antitoxin (TA) system. An endoribonuclease that cleaves both E.coli and M.smegmatis 23S rRNA between G2661 and A2662 in the sarcin-ricin loop (SRL, E.coli 23S rRNA numbering). The SRL sequence is highly conserved and is implicated in GTP hydrolysis by EF-Tu and EF-G. Acts on purified ribosomes but not on isolated RNA in E.coli, nor on a shortened artificial substrate. Upon expression in E.coli inhibits cell growth, colony formation and translation. Its toxic effect is neutralized by coexpression, or subsequent expression (tested [...]
  
  
 0.917
Rv2275
Conserved hypothetical protein; Involved in the biosynthesis of mycocyclosin. It uses activated amino acids in the form of aminoacyl-tRNAs (aa-tRNAs) as substrates to catalyze the ATP-independent formation of cyclodipeptides which are intermediates in diketopiperazine (DKP) biosynthetic pathways. Catalyzes the formation of cyclo(L-Tyr-L-Tyr) (cYY) from L- tyrosyl-tRNA(Tyr). Can incorporate various nonpolar residues, such as L-phenylalanine, L-leucine, L-tyrosine and L-methionine, and to a much lesser extent L-alanine, into cyclodipeptides. Cyclodipeptides synthesized by Rv2275 always c [...]
   
  
 0.658
Rv1288
Conserved protein; Exhibits lipolytic activity with medium chain length esters as optimum substrates. In vitro, pNP-caprylate (C8) is the optimum substrate followed by pNP-capricate (C10). May modulate the cell wall lipids to favor the survival of bacteria under stress conditions.
      
 0.655
Rv0064
Rv0064, (MTV030.07), len: 979 aa. Probable conserved transmembrane protein, similar to many. Contains probable coiled-coil domain from aa 948 to 976.
      
 0.650
vapB19
Possible antitoxin VapB19; Antitoxin component of a type II toxin-antitoxin (TA) system. Upon expression in M.smegmatis neutralizes the effect of cognate toxin VapC19.
   
  
 0.634
vapC24
Possible toxin VapC24. Contains PIN domain; Toxic component of a type II toxin-antitoxin (TA) system. An RNase. Its cognate antitoxin is VapB24 (By similarity). Belongs to the PINc/VapC protein family.
      
 0.627
Rv2548A
Rv2548A, len: 124 aa. Conserved protein.
       0.592
vapC37
Possible toxin VapC37. Contains PIN domain; Probable toxic component of a type II toxin-antitoxin (TA) system. An RNase. Upon expression in M.smegmatis inhibits colony formation. The putative cognate antitoxin is VapB37.
   
  
 0.585
vapB38
Possible antitoxin VapB38; Probable antitoxin component of a type II toxin-antitoxin (TA) system. Its putative cognate toxin is VapC38.
   
  
 0.548
Rv3376
Conserved hypothetical protein; Able to hydrolyze geranyl diphosphate (GPP), farnesyl diphosphate (FPP) and geranylgeranyl diphosphate (GGPP) to respectively yield geraniol, farnesol and geranylgeraniol.
   
  
 0.545
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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