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.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
purRTranscriptional regulator, LacI family; 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. (336 aa)    
Predicted Functional Partners:
VC_2373
Glutamate synthase, large subunit; Similar to GB:X80485 PID:515938 SP:P55037 PID:1652093; identified by sequence similarity; putative.
    
 
 0.764
VC_2376
Glutamate synthase, large subunit; Similar to PID:606151 GB:U00096 PID:1789605; identified by sequence similarity; putative.
    
 
 0.764
VC_1722
Conserved hypothetical protein; Identified by Glimmer2; putative.
     
 0.679
guaA
GMP synthase; Catalyzes the synthesis of GMP from XMP.
    
   0.622
vibB
Vibriobactin-specific isochorismatase; Involved in the biosynthesis of the catechol siderophore vibriobactin. Vibriobactin is a chelating compound involved in transporting iron from the bacterial environment into the cell cytoplasm; Belongs to the isochorismatase family.
    
   0.596
VC_1723
Conserved hypothetical protein; Identified by Glimmer2; putative.
       0.592
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.
    
 
 0.589
VC_A0518
PTS system, fructose-specific IIA/FPR component; Similar to PID:619247 SP:P24217 GB:U00096 PID:1736835 PID:1788494; identified by sequence similarity; putative.
   
 
 0.589
VC_1724
Hypothetical protein; Identified by Glimmer2; putative.
       0.582
ribB
3,4-dihydroxy-2-butanone 4-phosphate synthase/GTP cyclohydrolase II; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate; Belongs to the DHBP synthase family.
    
   0.579
Your Current Organism:
Vibrio cholerae
NCBI taxonomy Id: 243277
Other names: V. cholerae O1 biovar El Tor str. N16961, Vibrio cholerae El Tor N16961, Vibrio cholerae O1 biovar El Tor str. N16961, Vibrio cholerae O1 biovar eltor str. N16961, Vibrio cholerae serotype O1 biotype El Tor strain N16961, Vibrio cholerae serotype O1 biotype ElTor strain N16961
Server load: low (22%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.