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
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Textmining
[Homology]
Score
ppx1Conserved hypothetical protein; Degradation of inorganic polyphosphates (polyP). Releases orthophosphate processively from the ends of the polyP chain. Prefers short-chain length polyphosphates as substrates. Can also hydrolyze ATP and ADP substrates, but lacks GTPase activity. Cannot hydrolyze pppGpp to ppGpp; Belongs to the GppA/Ppx family. (328 aa)    
Predicted Functional Partners:
ppk1
Polyphosphate kinase PPK (polyphosphoric acid kinase) (ATP-polyphosphate phosphotransferase); Catalyzes the reversible transfer of the terminal phosphate of ATP to form a long-chain polyphosphate (polyP); Belongs to the polyphosphate kinase 1 (PPK1) family.
 
  
 0.968
ppx2
Conserved protein; Degradation of inorganic polyphosphates (polyP). Releases orthophosphate processively from the ends of the polyP chain. Prefers long-chain length polyphosphates as substrates (By similarity). Can also hydrolyze ATP and ADP substrates, but lacks GTPase activity. Cannot hydrolyze pppGpp to ppGpp. Belongs to the GppA/Ppx family.
  
 
0.963
relA
Guanosine-3',5'-bis(diphosphate) 3'-pyrophosphohydrolase; In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. This enzyme catalyzes both the formation of pppGpp, which is then hydrolyzed to form ppGpp, as well as the hydrolysis of ppGpp. RelA is probably a key factor in the pathogenesis of M.tuberculosis as it regulates the intracellular concentrations of (p)ppGpp.
  
 
 0.939
ppk2
Polyphosphate kinase Ppk2 (polyphosphoric acid kinase); Uses inorganic polyphosphate (polyP) as a donor to convert GDP to GTP. In addition, modulates nucleotide triphosphate synthesis catalyzed by the nucleoside diphosphate kinase (Ndk) in favor of GTP production over CTP or UTP. Plays an important role in survival of M.tuberculosis in macrophages.
 
  
 0.929
Rv0497
Rv0497, (MTCY20G9.23), len: 310 aa. Probable conserved transmembrane protein, equivalent (but shorter in C-terminus) to P54580|Y497_MYCLE|ML2433 hypothetical 37.9 KDA protein from Mycobacterium leprae (355 aa). N-terminus highly similar to S72922|B2168_C1_166|467074 hypothetical protein from Mycobacterium leprae (118 aa), FASTA scores: opt: 350, E(): 1.4e-12, (57.9% identity in 114 aa overlap); and hydrophobic C-terminus, highly similar to S72895|B2168_C2_209|467047 hypothetical protein from Mycobacterium leprae (241 aa), FASTA scores: opt: 473, E(): 8e-19, (53.9% identity in 241 aa). [...]
  
    0.887
Rv2603c
Highly conserved protein; Rv2603c, (MTCI270A.02), len: 251 aa. Highly conserved protein, equivalent to Q49645|YQ03_MYCLE|ML0475|U1177B|B1177_C2_181 hypothetical 26.6 KDA protein from Mycobacterium leprae (251 aa), FASTA scores: opt: 1514, E(): 2.2e-84, (92.45% identity in 251 aa overlap). Also highly similar to Q9L288|SCL2.11c hypothetical 26.8 KDA protein from Streptomyces coelicolor (250 aa), FASTA scores: opt: 1268, E(): 1.5e-69, (76.7% identity in 249 aa overlap); Q9AE12|YFCA hypothetical structural protein from Corynebacterium glutamicum (Brevibacterium flavum) (251 aa), FASTA sco [...]
  
  
 0.878
Rv0498
Rv0498, (MTCY20G9.24), len: 280 aa. Conserved hypothetical protein, highly similar to P54581|Y498_MYCLE|ML2432 hypothetical 30.5 KDA protein from Mycobacterium leprae (280 aa); and S72896|B2168_C2_210 hypothetical protein from Mycobacterium leprae (244 aa),FASTA scores: opt: 1486, E():0, (89.3% identity in 244 aa overlap). Also similar to Q9X8H0|Y714_STRCO|SCE7.14c hypothetical protein from Streptomyces coelicolor.
  
    0.864
Rv0499
Rv0499, (MTCY20G9.25), len: 291 aa. Conserved hypothetical protein, showing some similarity to AL031184|SC2A11_16|T34762 hypothetical protein from Streptomyces coelicolor (340 aa), FASTA scores: opt: 240,E(): 1.8e-07, (28.9% identity in 270 aa overlap).
  
    0.847
proC
Probable pyrroline-5-carboxylate reductase ProC (P5CR) (P5C reductase); Catalyzes the reduction of 1-pyrroline-5-carboxylate (PCA) to L-proline.
  
    0.816
Rv3231c
Conserved protein; Rv3231c, (MTCY20B11.06c), len: 169 aa. Conserved protein, similar to Q9KYX9|SCE33.03c hypothetical 17.4 KDA protein from Streptomyces coelicolor (167 aa), FASTA scores: opt: 415, E(): 6.6e-19, (49.1% identity in 171 aa overlap).
   
  
 0.810
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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