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
katGCatalase-peroxidase-peroxynitritase T KatG; Bifunctional enzyme with both catalase and broad-spectrum peroxidase activity, oxidizing various electron donors including NADP(H). Protects M.tuberculosis against toxic reactive oxygen species (ROS) including hydrogen peroxide as well as organic peroxides and thus contributes to its survival within host macrophages by countering the phagocyte oxidative burst. Also displays efficient peroxynitritase activity, which may help the bacterium to persist in macrophages. Catalyzes the oxidative activation of the antitubercular pro- drug isoniazid (I [...] (740 aa)    
Predicted Functional Partners:
furA
Ferric uptake regulation protein FurA (fur); Represses transcription of the catalase-peroxidase gene katG and its own transcription by binding to the promoter region in a redox- dependent manner; Belongs to the Fur family.
  
  
 0.979
sodA
Superoxide dismutase [FE] SodA; Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems.
  
 
 0.973
ahpC
Alkyl hydroperoxide reductase C protein AhpC (alkyl hydroperoxidase C); Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. Together with AhpD, DlaT and Lpd, constitutes an NADH-dependent peroxidase active against hydrogen and alkyl peroxides as well as serving as a peroxynitrite reductase, thus protecting the bacterium against reactive nitrogen intermediates and oxidative stress generated by the host immune system. D [...]
  
  
 0.968
pncA
Pyrazinamidase/nicotinamidase PncA (PZase); Catalyzes the deamidation of nicotinamide (NAM) into nicotinate. Likely functions in the cyclical salvage pathway for production of NAD from nicotinamide (By similarity). Belongs to the isochorismatase family.
   
  
 0.965
embB
Probable arabinosyltransferase B; Arabinosyl transferase responsible for the polymerization of arabinose into the arabinan of arabinogalactan; Belongs to the emb family.
   
  
 0.964
Rv1907c
Hypothetical protein; Rv1907c, (MTCY180.11), len: 215 aa. Hypothetical unknown protein. Similar to Q50763 Ethyl methane sulphonate resistance protein from Mycobacterium tuberculosis (168 aa), FASTA scores: opt: 638, E(): 0, (69.7% identity in 152 aa overlap). Downstream of a cloned katG gene (EMBL:mtkatg). Differences are due to frameshift errors in the EMBL sequence and the use of an earlier start codon. Alternative nucleotide at position 2153410 (a->G; V158A) has been observed.
  
  
 0.957
sodC
Periplasmic superoxide dismutase [Cu-Zn] SodC; Destroys radicals which are normally produced within the cells and which are toxic to biological systems. May play a role in favoring mycobacterial survival in phagocytes (By similarity).
   
 
 0.936
ndh
Rv1854c, (MTCY359.19), len: 463 aa. Probable ndh,NADH dehydrogenase (see citations below), similar to several e.g. S74826 NADH dehydrogenase from Synechocystis sp. (445 aa), FASTA score: opt: 1228, E(): 0, (46.3% identity in 432 aa overlap). Highly similar to Rv0392c|Z84725|g1817703 from Mycobacterium tuberculosis (470 aa), FASTA scores: opt: 1911, E(): 0, (64.7% identity in 459 aa overlap); and Rv1812c.
   
  
 0.933
kasA
3-oxoacyl-[acyl-carrier protein] synthase 1 KasA (beta-ketoacyl-ACP synthase) (KAS I); Catalyzes the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Belongs to the thiolase-like superfamily. Beta-ketoacyl-ACP synthases family.
  
  
 0.927
rpoB
DNA-directed RNA polymerase subunit beta; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
   
  
 0.924
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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