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
gyrB-2Fragment of DNA gyrase, subunit B (part 2); Function of homologous gene experimentally demonstrated in an other organism; enzyme. (320 aa)    
Predicted Functional Partners:
gyrA
DNA gyrase, subunit A; A type II topoisomerase that negatively supercoils closed circular double-stranded (ds) DNA in an ATP-dependent manner to modulate DNA topology and maintain chromosomes in an underwound state. Negative supercoiling favors strand separation, and DNA replication, transcription, recombination and repair, all of which involve strand separation. Also able to catalyze the interconversion of other topological isomers of dsDNA rings, including catenanes and knotted rings. Type II topoisomerases break and join 2 DNA strands simultaneously in an ATP-dependent manner.
 
 0.998
CCQ91689.1
DNA topoisomerase (ATP-hydrolyzing).
 
 0.998
CCQ90171.1
Conserved hypothetical protein; Inhibits all the catalytic activities of DNA gyrase by preventing its interaction with DNA. Acts by binding directly to the C- terminal domain of GyrB, which probably disrupts DNA binding by the gyrase.
    
 
 0.938
CCQ91912.1
Putative DNA polymerase III subunit beta; Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP- independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initi [...]
 
 
 0.693
polA
DNA polymerase I; In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity; Belongs to the DNA polymerase type-A family.
  
 
 0.624
CCQ91477.1
Putative Octaheam cytochrome c; Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative carrier.
   
 
 0.605
metG
Methionyl-tRNA synthetase; Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation; Belongs to the class-I aminoacyl-tRNA synthetase family.
  
  
 0.558
CCQ90376.1
Exported hypothetical protein; No homology to any previously reported sequences.
   
 
 0.552
CCQ89995.1
Hypothetical protein, contains TPR repeats; No homology to any previously reported sequences.
   
 
 0.542
pdxA
4-hydroxythreonine-4-phosphate dehydrogenase; Function of homologous gene experimentally demonstrated in an other organism; enzyme; Belongs to the PdxA family.
 
      0.532
Your Current Organism:
Nitrospina gracilis
NCBI taxonomy Id: 1266370
Other names: N. gracilis 3/211, Nitrospina gracilis 3/211, Nitrospina gracilis str. 3/211, Nitrospina gracilis strain 3/211
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