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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Textmining
[Homology]
Score
purRHTH-type transcriptional repressor PurR; Is the main repressor of the genes involved in the de novo synthesis of purine nucleotides, regulating purB, purC, purEK, purF, purHD, purL, purMN and guaBA expression. PurR is allosterically activated to bind its cognate DNA by binding the purine corepressors, hypoxanthine or guanine, thereby effecting transcription repression. (341 aa)    
Predicted Functional Partners:
yaiE
UPF0345 protein; Catalyzes the phosphorolysis of diverse nucleosides, yielding D-ribose 1-phosphate and the respective free bases. Can use uridine, adenosine, guanosine, cytidine, thymidine, inosine and xanthosine as substrates. Also catalyzes the reverse reactions.
      
 0.672
purT
Phosphoribosylglycinamide formyltransferase 2; Involved in the de novo purine biosynthesis. Catalyzes the transfer of formate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR). Formate is provided by PurU via hydrolysis of 10-formyl-tetrahydrofolate; Belongs to the PurK/PurT family.
      
 0.670
gltB
Glutamate synthase [NADPH] large chain.
    
 
 0.610
purN
Phosphoribosylglycinamide formyltransferase; Catalyzes the transfer of a formyl group from 10- formyltetrahydrofolate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR) and tetrahydrofolate.
   
  
 0.596
kbl
2-amino-3-ketobutyrate coenzyme A ligase; Catalyzes the cleavage of 2-amino-3-ketobutyrate to glycine and acetyl-CoA.
      
 0.595
purD
Phosphoribosylamine--glycine ligase; Belongs to the GARS family.
      
 0.594
lepB
Signal peptidase I; Belongs to the peptidase S26 family.
   
  
 0.547
purH
Bifunctional purine biosynthesis protein PurH.
   
 
 0.523
dhaM
PTS-dependent dihydroxyacetone kinase, phosphotransferase subunit DhaM; Belongs to the PEP-utilizing enzyme family.
   
 
 0.523
rbsK_4
Ribokinase; Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway.
  
 0.477
Your Current Organism:
Klebsiella aerogenes
NCBI taxonomy Id: 548
Other names: ATCC 13048, Aerobacter aerogenes, CIP 60.86, DSM 30053, Enterobacter aerogenes, HAMBI 101, IFO 13534, K. aerogenes, KCTC 2190, Klebsiella mobilis, LMG 2094, LMG:2094, NBRC 13534, NCAIM B.01467, NCTC 10006
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