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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
pbuXNucleobase:cation symporter for xanthine. (420 aa)    
Predicted Functional Partners:
xpt
Xanthine 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.
  
 0.982
pyrB
Aspartate carbamoyltransferase; Belongs to the aspartate/ornithine carbamoyltransferase superfamily. ATCase family.
  
  
 0.695
pyrR
Transcriptional attenuation of the pyrimidine operon / uracil phosphoribosyltransferase activity; Regulates transcriptional attenuation of the pyrimidine nucleotide (pyr) operon by binding in a uridine-dependent manner to specific sites on pyr mRNA. This disrupts an antiterminator hairpin in the RNA and favors formation of a downstream transcription terminator, leading to a reduced expression of downstream genes. Belongs to the purine/pyrimidine phosphoribosyltransferase family. PyrR subfamily.
  
  
 0.691
pyrC
Dihydroorotase; Catalyzes the reversible cyclization of carbamoyl aspartate to dihydroorotate; Belongs to the metallo-dependent hydrolases superfamily. DHOase family. Class I DHOase subfamily.
  
  
 0.680
purL
Phosphoribosylformylglycinamide synthetase.
  
  
 0.662
pyrF
Orotidine-5'-decarboxylase; Catalyzes the decarboxylation of orotidine 5'-monophosphate (OMP) to uridine 5'-monophosphate (UMP); Belongs to the OMP decarboxylase family. Type 1 subfamily.
  
  
 0.649
carA
Carbamoylphosphate synthase (glutamine-hydrolysing) light subunit; Belongs to the CarA family.
  
  
 0.638
pyrE
Orotate phosphoribosyltransferase; Catalyzes the transfer of a ribosyl phosphate group from 5- phosphoribose 1-diphosphate to orotate, leading to the formation of orotidine monophosphate (OMP).
  
  
 0.632
ABC-SBP-2
ABC transporter solute-binding protein - amino acid transport.
   
  
 0.631
carB
Carbamoylphosphate synthase (ammonia), heavy subunit.
  
  
 0.619
Your Current Organism:
Streptococcus pneumoniae
NCBI taxonomy Id: 171101
Other names: S. pneumoniae R6, Streptococcus pneumoniae (strain ATCC BAA-255 / R6), Streptococcus pneumoniae R6, Streptococcus pneumoniae str. R6
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