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
nrdDAnaerobic ribonucleoside-triphosphate reductase; This model represents the oxygen-sensitive (anaerobic, class III) ribonucleotide reductase. The mechanism of the enzyme involves a glycine-centered radical, a C-terminal zinc binding site, and a set of conserved active site cysteines and asparagines. This enzyme requires an activating component, NrdG, a radical-SAM domain containing enzyme (TIGR02491). Together the two form an alpha-2/beta-2 heterodimer. [Purines, pyrimidines, nucleosides, and nucleotides, 2'-Deoxyribonucleotide metabolism]; High confidence in function and specificity. (620 aa)    
Predicted Functional Partners:
pflA
Pyruvate-formate lyase-activating enzyme [Posttranslational modification, protein turnover, chaperones]; High confidence in function and specificity.
  
 0.989
ndk
Nucleoside-diphosphate kinase; Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate; Belongs to the NDK family.
     
 0.913
pyrG
CTP synthase; Catalyzes the ATP-dependent amination of UTP to CTP with either L-glutamine or ammonia as the source of nitrogen.
     
 0.910
relA
(p)ppGpp synthetase; RelA produces pppGpp (or ppGpp) from ATP and GTP (or GDP). SpoT degrades ppGpp, but may also act as a secondary ppGpp synthetase; High confidence in function and specificity.
     
 0.903
pyk
Pyruvate kinase; Glycolysis/gluconeogenesis; High confidence in function and specificity; Belongs to the pyruvate kinase family.
     
  0.900
ribB
3,4-dihydroxy-2-butanone 4-phosphate synthase; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; In the C-terminal section; belongs to the GTP cyclohydrolase II family.
    
  0.807
DTL3_0041
Hypothetical protein; Function unknown; High confidence in function and specificity.
       0.705
grpE
GrpE protein; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins, in association with DnaK and GrpE. It is the nucleotide exchange factor for DnaK and may function as a thermosensor. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-dependent i [...]
  
  
 0.586
topA
DNA topoisomerase 1; Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA- (5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand, thus removing DNA supe [...]
     
 0.524
polA
DNA polymerase I; In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity; Belongs to the DNA polymerase type-A family.
  
  
 0.498
Your Current Organism:
Defluviitoga tunisiensis
NCBI taxonomy Id: 1006576
Other names: D. tunisiensis, DSM 23805, Defluviitoga tunisiensis Ben Hania et al. 2012, JCM 17210, Thermotogaceae bacterium SulfLac1, strain SulfLac1
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