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
guaA1GuaA1; Catalyzes the synthesis of GMP from XMP. (509 aa)    
Predicted Functional Partners:
guaB
GuaB; 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.
 0.999
xpt
Xpt; 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.
 
 0.991
apt1
Apt1; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
  
 0.990
apt2
Apt2; Adenine phosphoribosyltransferase Apt.
  
 0.990
argS
ArgS; arginyl-tRNA synthetase ArgS (arginine--tRNA ligase) (ArgRS).
  
  
 0.988
rplK
RplK; Forms part of the ribosomal stalk which helps the ribosome interact with GTP-bound translation factors.
  
    0.975
ham
Ham; 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.
 
 
 0.975
gmk
Gmk; Essential for recycling GMP and indirectly, cGMP.
 
 
 0.971
pyrG
PyrG; Catalyzes the ATP-dependent amination of UTP to CTP with either L-glutamine or ammonia as the source of nitrogen. Regulates intracellular CTP levels through interactions with the four ribonucleotide triphosphates.
  
 
 0.971
purD
PurD; Catalyzes the conversion of N5-carboxyaminoimidazole ribonucleotide (N5-CAIR) to 4-carboxy-5-aminoimidazole ribonucleotide (CAIR); Belongs to the GARS family.
 
  
 0.964
Your Current Organism:
Desulfobacterium autotrophicum
NCBI taxonomy Id: 177437
Other names: D. autotrophicum HRM2, Desulfobacterium autotrophicum HRM2, Desulfobacterium autotrophicum str. HRM2, Desulfobacterium autotrophicum strain HRM2
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