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
capEFactor required for polyglutamate synthesis; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type f: factor. (55 aa)    
Predicted Functional Partners:
capC
Capsular polyglutamate amide ligase/translocase subunit; Required for PGA (gamma-polyglutamic acid) biosynthesis.
  
  
 0.996
capB
Capsular polyglutamate synthetase (ATP-dependent amide ligase); Catalyzes the biosynthesis of PGA (gamma-polyglutamic acid) from L-glutamate. Both the 44-kDa and the 33-kDa forms are required for PGA synthesis.
  
  
 0.995
capA
Capsular polyglutamate synthetase; Seems to be required for maximum PGA (gamma-polyglutamic acid) production; Belongs to the CapA family.
  
  
 0.973
pgdS
gamma-DD-glutamyl hydrolase (PGA depolymerase); Cleaves, in an endo-type manner, the gamma-glutamyl bond between D-glutamate and L-glutamate of poly-gamma-glutamate (PGA).
     
 0.957
degQ
Pleiotropic regulator; Stimulates the phosphotransfer from phospho-DegS to DegU. Affects protease and levansucrose production.
      
 0.758
yrpC
Glutamate racemase; Provides the (R)-glutamate required for cell wall biosynthesis.
      
 0.681
rocG
Glutamate dehydrogenase; Devoted to catabolic function of glutamate (and other amino acids of the glutamate family) utilization as sole nitrogen source. It is not involved in anabolic function of glutamate biosynthesis since B.subtilis possesses only one route of glutamate biosynthesis from ammonia, catalyzed by glutamate synthase. RocG is unable to utilize glutamate or glutamine as sole carbon source and to synthesize glutamate, but it is involved in the utilization of arginine, and proline as carbon or nitrogen source. The catabolic RocG is essential for controlling gltAB expression [...]
      
 0.681
degS
Two-component sensor histidine kinase; Member of the two-component regulatory system DegS/DegU, which plays an important role in the transition growth phase. Involved in the control of expression of different cellular functions, including production of degradative enzymes such as the neutral and alkaline proteases, flagellum formation and biofilm formation. Acts as both a protein kinase that undergoes autophosphorylation and subsequently transfers the phosphate to DegU, and a protein phosphatase that dephosphorylates phospho-DegU.
      
 0.601
gudB
Cryptic glutamate dehydrogenase; GudB seems to be intrinsically inactive, however spontaneous mutations removing a 9-bp direct repeat within the wild-type gudB sequence activated the GudB protein and allowed more-efficient utilization of amino acids of the glutamate family. This insertion presumably causes severe destabilization of the fold of the protein, leading to an inactive enzyme that is very quickly degraded. The cryptic GudB serves as a buffer that may compensate for mutations in the rocG gene and that can also be decryptified for the utilization of glutamate as a single carbon [...]
      
 0.566
comP
Two-component sensor histidine kinase; Sensor in the two-component regulatory system ComP/ComA involved in a major quorum response pathway that regulates the development of genetic competence. Plays a role in sporulation, at least partly interchangeable with that of SpoIIJ. Probably activates ComA by phosphorylation.
      
 0.562
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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