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.
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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
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[Homology]
Score
tdkThymidine kinase/deoxyuridine kinase; Phosphorylates both thymidine and deoxyuridine. (205 aa)    
Predicted Functional Partners:
thyA
Thymidylate synthetase; Catalyzes the reductive methylation of 2'-deoxyuridine-5'- monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and reductant in the reaction, yielding dihydrofolate (DHF) as a by-product. This enzymatic reaction provides an intracellular de novo source of dTMP, an essential precursor for DNA biosynthesis. This protein also binds to its mRNA thus repressing its own translation.
  
 
 0.995
deoA
Thymidine phosphorylase; The enzymes which catalyze the reversible phosphorolysis of pyrimidine nucleosides are involved in the degradation of these compounds and in their utilization as carbon and energy sources, or in the rescue of pyrimidine bases for nucleotide synthesis; Belongs to the thymidine/pyrimidine-nucleoside phosphorylase family.
 
  
 0.983
tmk
Thymidylate kinase; Catalyzes the reversible phosphorylation of deoxythymidine monophosphate (dTMP) to deoxythymidine diphosphate (dTDP), using ATP as its preferred phosphoryl donor. Situated at the junction of both de novo and salvage pathways of deoxythymidine triphosphate (dTTP) synthesis, is essential for DNA synthesis and cellular growth; Belongs to the thymidylate kinase family.
  
 
 0.982
dut
Deoxyuridinetriphosphatase; This enzyme is involved in nucleotide metabolism: it produces dUMP, the immediate precursor of thymidine nucleotides and it decreases the intracellular concentration of dUTP so that uracil cannot be incorporated into DNA.
   
 
 0.981
deoD
Purine nucleoside phosphorylase 1; Cleavage of guanosine or inosine to respective bases and sugar-1-phosphate molecules.
  
 
 0.972
udp
Uridine phosphorylase; Catalyzes the reversible phosphorylytic cleavage of uridine and deoxyuridine to uracil and ribose- or deoxyribose-1-phosphate. The produced molecules are then utilized as carbon and energy sources or in the rescue of pyrimidine bases for nucleotide synthesis.
     
 0.964
cdd
Cytidine/deoxycytidine deaminase; This enzyme scavenges exogenous and endogenous cytidine and 2'-deoxycytidine for UMP synthesis.
 
  
 0.954
ushA
Bifunctional UDP-sugar hydrolase/5'-nucleotidase; Degradation of external UDP-glucose to uridine monophosphate and glucose-1-phosphate, which can then be used by the cell.
 
  
 0.949
yjjG
dUMP phosphatase; Nucleotidase that shows high phosphatase activity toward non- canonical pyrimidine nucleotides and three canonical nucleoside 5'- monophosphates (UMP, dUMP, and dTMP), and very low activity against TDP, IMP, UDP, GMP, dGMP, AMP, dAMP, and 6-phosphogluconate. Appears to function as a house-cleaning nucleotidase in vivo, since the general nucleotidase activity of YjjG allows it to protect cells against non- canonical pyrimidine derivatives such as 5-fluoro-2'-deoxyuridine, 5- fluorouridine, 5-fluoroorotate, 5-fluorouracil, and 5-aza-2'- deoxycytidine, and prevents the i [...]
 
  
 0.938
yfbR
5'-nucleotidase; Essential component of the deoxycytidine triphosphate (dCTP) pathway for de novo synthesis of thymidylate. Catalyzes the strictly specific dephosphorylation of 2'-deoxyribonucleoside 5'-monophosphates (dAMP, dGMP, dTMP, dUMP, dIMP and dCMP) and does not dephosphorylate 5'-ribonucleotides or ribonucleoside 3'-monophosphates.
  
 
 0.918
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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