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.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
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[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:
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.
 
 0.978
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.
  
  
 0.972
MJ_0226
Conserved hypothetical protein; Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides xanthosine triphosphate (XTP), deoxyinosine triphosphate (dITP) and ITP. Probably functions as a house- cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. Shows very low activity on GTP or dGTP, both of which are hydrolyzed more than 100-fold less efficiently than X [...]
 
 
 0.930
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.
 
 
 0.924
guaAB
GMP synthase (guaA); Catalyzes the synthesis of GMP from XMP.
  
 
 0.922
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.
  
 
 0.920
MJ_0667
Thymidine phosphorylase (deoA); Catalyzes the conversion of AMP and phosphate to adenine and ribose 1,5-bisphosphate (R15P). Exhibits phosphorylase activity toward CMP and UMP in addition to AMP. Functions in an archaeal AMP degradation pathway, together with R15P isomerase and RubisCO. Belongs to the thymidine/pyrimidine-nucleoside phosphorylase family. Type 2 subfamily.
    
 0.912
guaAA
GMP synthase (guaA); Catalyzes the synthesis of GMP from XMP.
    
 0.911
surE
surE stationary-phase survival protein SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
    
 0.905
purO
Conserved hypothetical protein; Catalyzes the cyclization of 5-formylamidoimidazole-4- carboxamide ribonucleotide to IMP; Belongs to the archaeal IMP cyclohydrolase family.
    
  0.902
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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