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
caeAProbable carboxylesterase CaeA; Involved in virulence. Catalyzes the cleavage of ester bonds. Esterase activity increases with increasing carbon chain length of the substrate. (520 aa)    
Predicted Functional Partners:
glnA2
Probable glutamine synthetase GlnA2 (glutamine synthase) (GS-II); Glutamine synthetase (GS) is an unusual multitasking protein that functions as an enzyme, a transcription coregulator, and a chaperone in ammonium assimilation and in the regulation of genes involved in nitrogen metabolism. It catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia. Feedback- inhibited GlnA also interacts with and regulates the activity of the transcriptional regulator TnrA. During nitrogen limitation, TnrA is in its DNA-binding active state and turns on the transcription of gene [...]
  
  
 0.732
glnE
Glutamate-ammonia-ligase adenylyltransferase GlnE (glutamine-synthetase adenylyltransferase); Involved in the regulation of glutamine synthetase GlnA, a key enzyme in the process to assimilate ammonia. When cellular nitrogen levels are high, the C-terminal adenylyl transferase (AT) inactivates GlnA by covalent transfer of an adenylyl group from ATP to specific tyrosine residue of GlnA, thus reducing its activity. Conversely, when nitrogen levels are low, the N-terminal adenylyl removase (AR) activates GlnA by removing the adenylyl group by phosphorolysis, increasing its activity. The r [...]
     
 0.707
caeB
Probable exported protease; Catalyzes the cleavage of ester bonds. Esterase activity increases with increasing carbon chain length of the substrate (Potential).
 
   
0.648
lipZ
Probable hydrolase; Rv1834, (MTCY1A11.09c), len: 288 aa. Probable lipZ,hydrolase, some similarity to haloalkane dehalogenases and D16262 hypothetical 38.9 kDa protein (335 aa), FASTA scores: opt: 507, E(): 7.6e-28, (33.0% identity in 300 aa overlap).
      
 0.630
Rv0203
Possible exported protein; Part of a heme-iron acquisition system. Acts by binding heme and delivering it to the membrane proteins MmpL3 and MmpL11. Can use free heme or heme from host hemoglobin.
      
 0.594
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.
    
 0.581
Rv2256c
Rv2256c, (MTV022.06c), len: 177 aa. Conserved hypothetical protein, similar to Streptomyces glaucescens ORF5 (164 aa) and Streptomyces coelicolor hypothetical protein SC4A7.19c (164 aa; emb|CAB62723.1|AL133423). FASTA scores: sptr|Q54209|Q54209 FABD, FABH, FABC, FABB, and ORF5 (164 aa) opt: 504, E(): 3.9e-27; (44.4% identity in 162 aa overlap).
  
     0.562
Rv1075c
Conserved exported protein; Esterase that preferentially hydrolyzes short-chain fatty acids, particularly pNP-acetate (C2) and pNP-butyrate (C4). Has also weak activity with pNP-hexanoate (C6) and pNP-octanoate (C8). It can also hydrolyze short-chain tryglycerides such as triacetin and tributyrin. Important for intracellular survival.
  
  
 0.540
pks5
Probable polyketide synthase Pks5; Polyketide synthase likely involved in the biosynthesis of a polymethyl-branched fatty acid (PMB-FA) that might only be produced during host infection. Is required for the full virulence of M.tuberculosis during host infection.
  
 
 0.526
pks12
Polyketide synthase Pks12; Rv2048c, (MTV018.35c), len: 4151 aa. Pks12,polyketide synthase similar to many. Contains 2x PS00012 Phosphopantetheine attachment site, 2x PS00606 Beta-ketoacyl synthases active site, and PS00343 Gram-positive cocci surface proteins 'anchoring' hexapeptide. Nucleotide position 2297976 in the genome sequence has been corrected, G:A resulting in S3004L.
  
 
 0.526
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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