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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
amb4308Adenine/guanine phosphoribosyltransferase and related PRPP-binding protein; Acts on guanine, xanthine and to a lesser extent hypoxanthine. (151 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.
  
 
 0.942
apt
Adenine/guanine phosphoribosyltransferase and related PRPP-binding protein; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
  
 0.926
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
   
 0.917
guaA
GMP synthase; Catalyzes the synthesis of GMP from XMP.
  
 
 0.916
amb4499
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.
  
 
  0.905
amb2392
Predicted pyrophosphatase.
     
 0.904
amb3473
GMP synthase - Glutamine amidotransferase domain.
    
  0.901
surE
Predicted acid phosphatase; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
     
  0.900
amb4309
Gamma-glutamyltransferase.
       0.577
amb4310
Hypothetical protein.
       0.534
Your Current Organism:
Magnetospirillum magneticum
NCBI taxonomy Id: 342108
Other names: M. magneticum AMB-1, Magnetospirillum magneticum AMB-1, Magnetospirillum magneticum str. AMB-1, Magnetospirillum magneticum strain AMB-1, Magnetospirillum sp. (strain AMB-1), Magnetospirillum sp. AMB-1
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