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
xptXanthine phosphoribosyltransferase; Converts the preformed base xanthine, a product of nucleic acid breakdown, to xanthosine 5'-monophosphate (XMP), so it can be reused for RNA or DNA synthesis. (194 aa)    
Predicted Functional Partners:
pucK
Uric acid permease PucK.
  
 0.992
guaA_2
GMP synthase; Catalyzes the synthesis of GMP from XMP.
  
 0.992
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.955
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.
  
 
 0.953
punA
Purine nucleoside phosphorylase 1; 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.
  
 
 0.937
hpt
Hypoxanthine-guanine phosphoribosyltransferase; Belongs to the purine/pyrimidine phosphoribosyltransferase family.
   
 0.927
apt
Adenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
     
 0.922
ARP43689.1
Non-canonical purine NTP 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.
   
 0.920
deoD
Purine nucleoside phosphorylase DeoD-type.
    
 0.914
yhcR
Endonuclease YhcR; Belongs to the 5'-nucleotidase family.
    
 0.914
Your Current Organism:
Geobacillus thermodenitrificans
NCBI taxonomy Id: 33940
Other names: ATCC 29492, BGSC 94A1, Bacillus sp. BGSC W9A21, Bacillus sp. BGSC W9A45, Bacillus sp. BGSC W9A5, Bacillus sp. BGSC W9A54, Bacillus sp. BGSC W9A65, Bacillus sp. BGSC W9A66, Bacillus sp. BGSC W9A67, Bacillus sp. BGSC W9A69, Bacillus sp. BGSC W9A71, Bacillus sp. BGSC W9A73, Bacillus sp. BGSC W9A74, Bacillus sp. BGSC W9A86, Bacillus sp. BGSC W9A87, Bacillus sp. BGSC W9A91, Bacillus thermodenitrificans, DSM 465, G. thermodenitrificans, Geobacillus sp. A333, Geobacillus sp. F84a, Geobacillus sp. G11MC16, Geobacillus thermodenitrificans (Manachini et al. 2000) Nazina et al. 2001 emend. Cihan et al. 2011, Geobacillus thermodenitrificans (Manachini et al. 2000) Nazina et al. 2001 emend. Coorevits et al. 2012, LMG 17532, LMG:17532, strain R-35647
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