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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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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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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. (193 aa)    
Predicted Functional Partners:
guaA
GMP synthase [glutamine-hydrolyzing]; Catalyzes the synthesis of GMP from XMP.
  
 0.966
pbuX
Xanthine/uracil permease family protein.
  
 0.952
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.
  
 
 0.941
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.938
RY69_1628
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.
  
 0.922
RY69_779
IMP dehydrogenase family protein.
  
 
 0.919
hpt
Hypoxanthine phosphoribosyltransferase; Belongs to the purine/pyrimidine phosphoribosyltransferase family.
  
 0.918
RY69_1645
Glutamine amidotransferase Class I.
  
 
 0.911
RY69_70
YfiH family protein.
    
  0.903
RY69_1419
Phosphoribosylformylglycinamidine synthase.
  
  
 0.705
Your Current Organism:
Bifidobacterium breve
NCBI taxonomy Id: 1685
Other names: AS 1.2213, ATCC 15700, B. breve, BCRC 11846, Bifidobacterium parvulorum, CCRC 11846, CCRC:11846, CCUG 18365, CCUG 30511 A, CIP 64.69, DSM 20213, HAMBI 558, LMG 11042, LMG:11042, NCAIM B.01820, NCFB 2257, NCIMB 702257, NCTC 11815
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