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:
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Gene Fusion
Cooccurrence
Coexpression
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[Homology]
Score
nadKConserved hypothetical protein; Involved in the regulation of the intracellular balance of NAD and NADP, and is a key enzyme in the biosynthesis of NADP. Catalyzes specifically the phosphorylation on 2'-hydroxyl of the adenosine moiety of NAD to yield NADP. (276 aa)    
Predicted Functional Partners:
nadE
NAD synthetase, ammonia dependent; Catalyzes the ATP-dependent amidation of deamido-NAD to form NAD. Uses ammonia as a nitrogen source.
  
 
 0.988
nadD
Conserved hypothetical protein; Catalyzes the reversible adenylation of nicotinate mononucleotide (NaMN) to nicotinic acid adenine dinucleotide (NaAD).
  
 
 0.932
spr1004
Similar to GTP pyrophosphokinase.
  
    0.828
rluD-2
23S rRNA pseudouridine synthase; Responsible for synthesis of pseudouridine from uracil. Belongs to the pseudouridine synthase RluA family.
  
  
 0.811
pta
Phosphate acetyltransferase.
  
  
 0.737
spr1277
Conserved hypothetical protein; Catalyzes the first step in the biosynthesis of NAD from nicotinic acid, the ATP-dependent synthesis of beta-nicotinate D- ribonucleotide from nicotinate and 5-phospho-D-ribose 1-phosphate. Belongs to the NAPRTase family.
  
  
 0.718
spr1003
Conserved hypothetical protein.
 
     0.714
dfp
Similar to C-terminal region of the Dfp protein.
  
  
 0.640
dfp-2
Similar to N-terminal region of the Dfp protein.
  
  
 0.640
ribA
Riboflavin biosynthesis; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; In the C-terminal section; belongs to the GTP cyclohydrolase II family.
     
 0.634
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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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.