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
nrdRNegative regulator of transcription of ribonucleotide reductase nrd genes and operons; Negatively regulates transcription of bacterial ribonucleotide reductase nrd genes and operons by binding to NrdR- boxes; Belongs to the NrdR family. (152 aa)    
Predicted Functional Partners:
birA
Biotin acetyl-CoA-carboxylase ligase and biotin regulon repressor; Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a repressor; Belongs to the biotin--protein ligase family.
     
 0.898
dnaB
Helicase loading protein; Probable component of primosome involved in the initiation of DNA replication. It is essential for both replication initiation and membrane attachment of the origin region of the chromosome and plasmid pUB110.
  
  
 0.780
nrdE
Ribonucleoside-diphosphate reductase (major subunit); Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides (By similarity).
     
 0.755
yosP
Ribonucleoside-diphosphate reductase 2, beta subunit; Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides (By similarity); Belongs to the ribonucleoside diphosphate reductase small chain family.
     
 0.753
nrdF
Ribonucleoside-diphosphate reductase (minor subunit); Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides (By similarity).
     
 0.752
ahrC
Transcriptional regulator; Represses the synthesis of biosynthetic enzymes and activates the arginine catabolism. Controls the transcription of the two operons rocABC and rocDEF.
   
  
 0.748
nrdI
Co-factor of ribonucleotide diphosphate reductase; Probably involved in ribonucleotide reductase function.
      
 0.733
cmk
Cytidylate kinase; Evidence 1a: Function experimentally demonstrated in the studied strain; enzyme.
 
    0.725
ribD
Fused diaminohydroxyphosphoribosylaminopyrimidine deaminase; Converts 2,5-diamino-6-(ribosylamino)-4(3h)-pyrimidinone 5'- phosphate into 5-amino-6-(ribosylamino)-2,4(1h,3h)-pyrimidinedione 5'- phosphate; In the C-terminal section; belongs to the HTP reductase family.
 
  
 0.711
nrdIB
SPbeta phage subunit of nucleoside diphosphate reductase; Probably involved in ribonucleotide reductase function.
      
 0.571
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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