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
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[Homology]
Score
gptXanthine-guanine phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine; Belongs to the purine/pyrimidine phosphoribosyltransferase family. XGPT subfamily. (152 aa)    
Predicted Functional Partners:
guaA
GMP synthase [glutamine-hydrolyzing]; Catalyzes the synthesis of GMP from XMP.
  
 0.989
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.953
apt
Adenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
  
 
 0.939
ECA3005
Similar to Ralstonia solanacearum putative glutamine amidotransferase protein rsc0213 or rs00645 SWALL:Q8Y2W9 (EMBL:AL646058) (238 aa) fasta scores: E(): 9e-37, 45.37% id in 238 aa, and to Xylella fastidiosa GMP synthase xf0560 SWALL:Q9PFU7 (EMBL:AE003903) (240 aa) fasta scores: E(): 1.1e-28, 43.8% id in 242 aa.
  
 
 0.929
hpt
Similar to Salmonella typhimurium hypoxanthine phosphoribosyltransferase Hpt or stm0170 SWALL:HPRT_SALTY (SWALL:O33799) (178 aa) fasta scores: E(): 1.2e-54, 86.2% id in 174 aa, and to Escherichia coli, Escherichia coli O6, and Shigella flexneri hypoxanthine phosphoribosyltransferase Hpt or b0125 or c0154 or sf0122 SWALL:HPRT_ECOLI (SWALL:P36766) (178 aa) fasta scores: E(): 2.4e-54, 84.48% id in 174 aa; Belongs to the purine/pyrimidine phosphoribosyltransferase family.
   
 0.926
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.
  
 
 0.924
guaC
GMP reductase; Catalyzes the irreversible NADPH-dependent deamination of GMP to IMP. It functions in the conversion of nucleobase, nucleoside and nucleotide derivatives of G to A nucleotides, and in maintaining the intracellular balance of A and G nucleotides.
  
 
 0.924
deoD
Purine nucleoside phosphorylase; Similar to Escherichia coli, and Escherichia coli O157:H7 purine nucleoside phosphorylase deoD or Pup or b4384 or z5986 or ecs5343 SWALL:DEOD_ECOLI (SWALL:P09743) (238 aa) fasta scores: E(): 2.1e-80, 89.07% id in 238 aa.
    
 0.919
ECA3631
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.
   
 0.917
ushA
Similar to Escherichia coli protein UshA precursor [includes: UDP-sugar hydrolase and 5'-nucleotidase] UshA or b0480 SWALL:USHA_ECOLI (SWALL:P07024) (550 aa) fasta scores: E(): 1.6e-157, 71.5% id in 551 aa; Belongs to the 5'-nucleotidase family.
    
 0.909
Your Current Organism:
Pectobacterium atrosepticum
NCBI taxonomy Id: 218491
Other names: Erwinia carotovora subsp. atroseptica SCRI1043, Erwinia carotovora subsp. atroseptica str. SCRI1043, P. atrosepticum SCRI1043, Pectobacterium atrosepticum SCRI1043, Pectobacterium atrosepticum str. SCRI1043, Pectobacterium atrosepticum strain SCRI1043, Pectobacterium carotovora subsp. atroseptica SCRI1043, Pectobacterium carotovora subsp. atroseptica str. SCRI1043
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