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
MJ_0406Ribokinase (rbsK); Catalyzes the phosphorylation of a wide range of nucleosides to yield nucleoside monophosphates. Shows the highest activity for inosine, guanosine and cytidine, but very poor kinase activity with adenosine, thymidine, uridine and xanthosine. ATP is the best phosphate donor, but can also use ITP and GTP. Shows extremely low activity with fructose-6-phosphate; Belongs to the carbohydrate kinase PfkB family. (302 aa)    
Predicted Functional Partners:
hisA
Phosphoribosylformimino-5-aminoimidazole carboxamide ribotide isomerase (hisA1); Similar to SP:P10371 PID:41713 GB:U00096 PID:1736702 PID:1736711 percent identity: 32.64; identified by sequence similarity; putative.
  
  
 0.994
purA
Adenylosuccinate synthetase (purA); Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family.
 
 0.982
hpt
Adenine phosphoribosyltransferase (apt); Catalyzes a salvage reaction resulting in the formation of IMP that is energically less costly than de novo synthesis. Belongs to the purine/pyrimidine phosphoribosyltransferase family. Archaeal HPRT subfamily.
  
 0.980
guaAB
GMP synthase (guaA); Catalyzes the synthesis of GMP from XMP.
  
 
 0.926
guaB
Inosine-5'-monophosphate dehydrogenase, (guaB); Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family.
  
 
 0.923
cmk
Cytidylate kinase (cmk); Similar to SP:P38493 GB:U11687 PID:533105 PID:1146214 GB:AL009126 percent identity: 33.12; identified by sequence similarity; putative.
 
 
  0.919
guaAA
GMP synthase (guaA); Catalyzes the synthesis of GMP from XMP.
  
 
 0.919
surE
surE stationary-phase survival protein SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
    
 0.906
purO
Conserved hypothetical protein; Catalyzes the cyclization of 5-formylamidoimidazole-4- carboxamide ribonucleotide to IMP; Belongs to the archaeal IMP cyclohydrolase family.
    
  0.902
pfkC
Hypothetical protein; Catalyzes the phosphorylation of fructose 6-phosphate and D- glucose to fructose 1,6-bisphosphate and D-glucose 6-phosphate, respectively, using ADP as the phosphate donor; Belongs to the carbohydrate kinase PfkC family.
      
 0.894
Your Current Organism:
Methanocaldococcus jannaschii
NCBI taxonomy Id: 243232
Other names: M. jannaschii DSM 2661, Methanocaldococcus jannaschii DSM 2661, Methanocaldococcus jannaschii str. DSM 2661, Methanococcus jannaschii DSM 2661
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