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
higBPossible toxin HigB; Toxic component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Upon expression in M.smegmatis inhibits colony formation and cell growth. Ectopic expression in wild-type M.tuberculosis has no effect on cell growth; ectopic expression in a triple higB1-higA1-Rv1957 (delta TAC) disruption mutant causes growth arrest, killing a considerable proportion of the cells. Increased ectopic expression leads to decreased levels of IdeR- and Zur-regulated genes as well as cleavage within the mRNA region of tmRNA (transfer-mRNA), strongly suggesting it is an endo [...] (125 aa)    
Predicted Functional Partners:
higA
Possible antitoxin HigA; Antitoxin component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Upon expression in M.smegmatis neutralizes the effect of cognate toxin HigB1. Neutralization of HigB1 toxin in E.coli or M.marinum also requires SecB-like chaperone Rv1957, making this the first toxin-antitoxin chaperone (TAC) system. Antitoxin aggregation and degradation are prevented by the chaperone.
  
 
 0.993
secBL
Hypothetical protein; Chaperone component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Prevents antitoxin HigA1 aggregation in vitro at a 1:3 chaperone:antitoxin ratio, probably also protects antitoxin HigA1 from protease. Required for neutralization of toxin HigB1 upon ectopic expression in Mycobacterium marinum or E.coli. When expressed in E.coli complements a secB deletion, restores export of OmpA and MBP and inhibits aggregation of proOmpC although it is less efficient than endogenous SecB. Complements the general chaperone function of E.coli SecB less well; Belo [...]
  
  
 0.970
relE
Toxin RelE; Toxic component of a type II toxin-antitoxin (TA) system. Has RNase activity (By similarity). Overexpression in M.tuberculosis or M.smegmatis inhibits colony formation in a bacteriostatic rather than bacteriocidal fashion. Its toxic effect is neutralized by coexpression with cognate antitoxin RelB (shown only for M.smegmatis).
  
  
 0.838
higB2
Conserved protein; Putative toxic component of a type II toxin-antitoxin (TA) system. Its cognate antitoxin would be HigA2. Belongs to the mycobacterial HigB family.
   
  
 0.809
higA2
Transcriptional regulatory protein; Putative antitoxin component of a type II toxin-antitoxin (TA) system. Its cognate toxin would be HigB2.
  
  
 0.684
relK
Toxin RelK; Toxic component of a type II toxin-antitoxin (TA) system. Has RNase activity and preferentially cleaves at the 3'-end of purine ribonucleotides (By similarity). Overexpression in M.tuberculosis or M.smegmatis inhibits colony formation in a bacteriostatic rather than bacteriocidal fashion. Its toxic effect is neutralized by coexpression with antitoxin RelJ (shown only for M.smegmatis). Overexpression also increases the number of rifampcin-tolerant persister cells. Belongs to the YoeB family.
  
  
 0.661
higB3
Conserved hypothetical protein; Putative toxic component of a type II toxin-antitoxin (TA) system. Its cognate antitoxin would be HigA3. Not toxic upon expression in M.smegmatis.
   
  
 0.642
Rv1954A
Rv1954A, len: 100 aa. Hypothetical unknown protein.
     
 0.618
vapB14
Possible antitoxin VapB14; Putative antitoxin component of a possible type II toxin- antitoxin (TA) system. The cognate toxin is VapB14.
  
  
 0.591
mazE7
Antitoxin MazE7; Antitoxin component of a type II toxin-antitoxin (TA) system. Upon expression in E.coli but not in M.smegmatis neutralizes the effect of cognate toxin MazF7.
      
 0.560
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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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.