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. (163 aa)    
Predicted Functional Partners:
guaA
GMP synthase; Catalyzes the synthesis of GMP from XMP.
  
 0.996
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.975
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.
  
 
 0.955
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.
  
 
 0.950
hpt
Hypoxanthine phosphoribosyltransferase; Identified by similarity to SP:P37472; match to protein family HMM PF00156; match to protein family HMM TIGR01203; Belongs to the purine/pyrimidine phosphoribosyltransferase family.
  
 0.946
DVU_3154
HAM1 family protein; 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.
  
 0.928
surE
Acid phosphatase SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
  
 
 0.920
MazG
MazG family protein; Identified by similarity to OMNI:VC2450; match to protein family HMM PF03819; match to protein family HMM TIGR00444.
  
 
  0.908
purB
Adenylosuccinate lyase; Identified by similarity to SP:P12047; match to protein family HMM PF00206; match to protein family HMM TIGR00928; Belongs to the lyase 1 family. Adenylosuccinate lyase subfamily.
  
 
 0.800
DVU_0464
Prephenate dehydrogenase; Identified by match to protein family HMM PF02153.
  
  
 0.762
Your Current Organism:
Desulfovibrio vulgaris Hildenborough
NCBI taxonomy Id: 882
Other names: D. vulgaris str. Hildenborough, Desulfovibrio vulgaris (STRAIN HILDENBOROUGH), Desulfovibrio vulgaris ATCC 29579, Desulfovibrio vulgaris str. Hildenborough, Desulfovibrio vulgaris subsp. vulgaris (strain Hildenborough), Desulfovibrio vulgaris subsp. vulgaris ATCC 29579, Desulfovibrio vulgaris subsp. vulgaris str. Hildenborough
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