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 phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine; Belongs to the purine/pyrimidine phosphoribosyltransferase family. XGPT subfamily. (168 aa)    
Predicted Functional Partners:
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.
  
 
 0.904
guaA
Gmp synthase [glutamine-hydrolyzing] (glutamin amidotransferase) (gmp synthetase); Catalyzes the synthesis of GMP from XMP.
  
 
  0.893
apt
Putative adenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
  
 0.886
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
   
 0.872
nsnH
Putative Inosine-uridine preferring nucleoside hydrolase.
     
 0.846
GDI1377
Putative HAM1 protein homolog; 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.
  
 
  0.844
rih
Putative pyrimidine-specific ribonucleoside hydrolase.
     
 0.823
deoD
5'-methylthioadenosine phosphorylase; Catalyzes the reversible phosphorylation of S-methyl-5'- thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates; Belongs to the PNP/MTAP phosphorylase family. MTAP subfamily.
    
 0.778
GDI3219
Putative sugar isomerase.
       0.768
metG-2
Putative methionyl-tRNA synthetase.
       0.747
Your Current Organism:
Gluconacetobacter diazotrophicus
NCBI taxonomy Id: 272568
Other names: G. diazotrophicus PA1 5, Gluconacetobacter diazotrophicus ATCC 49037, Gluconacetobacter diazotrophicus BR 11281, Gluconacetobacter diazotrophicus CCUG 37298, Gluconacetobacter diazotrophicus CIP 103539, Gluconacetobacter diazotrophicus DSM 5601, Gluconacetobacter diazotrophicus LMG 7603, Gluconacetobacter diazotrophicus NCCB 89154, Gluconacetobacter diazotrophicus PA1 5, Gluconacetobacter diazotrophicus str. PA1 5, Gluconacetobacter diazotrophicus strain PA1 5
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