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
gptXanthine-guanine phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine; Belongs to the purine/pyrimidine phosphoribosyltransferase family. XGPT subfamily. (165 aa)    
Predicted Functional Partners:
guaA-2
GMP synthase; Catalyzes the synthesis of GMP from XMP.
  
 0.985
gmk-2
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.949
apt
Adenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
  
 
 0.938
deoD
Purine nucleoside phosphorylase; The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate.
  
 
 0.930
guaB
Inosine-5`-monophosphate dehydrogenase; 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.
  
 
 0.927
ham1
Putative deoxyribonucleotide triphosphate pyrophosphatase; Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function 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. Belongs to the HAM1 NTPase family.
  
 0.926
hpt
Hypoxanthine phosphoribosyltransferase; Belongs to the purine/pyrimidine phosphoribosyltransferase family.
   
 0.926
guaA-3
GMP synthase - glutamine amidotransferase protein.
  
 
 0.920
surE
Stationary-phase survival protein; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
    
 0.909
iunH
Inosine-uridine preferring nucleoside hydrolase.
     
 0.905
Your Current Organism:
Agrobacterium fabrum
NCBI taxonomy Id: 176299
Other names: A. fabrum str. C58, Agrobacterium fabrum str. C58, Agrobacterium tumefaciens (strain C58 / ATCC 33970), Agrobacterium tumefaciens (strain C58), Agrobacterium tumefaciens str. C58, Agrobacterium tumefaciens str. C58 (Cereon), Agrobacterium tumefaciens str. C58 (Dupont), Agrobacterium tumefaciens str. C58 (U. Washington), Rhizobium radiobacter str. C58 (Cereon), Rhizobium radiobacter str. C58 (Dupont), Rhizobium radiobacter str. C58 (U. Washington)
Server load: medium (46%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.