close STRING v12.5 is now available!
The next version of STRING is ready for use in your analyses: updated networks across STRING newly available directed regulatory networks a new typed view showing functional, physical, and regulatory edges in one network new clustering options and cluster-based layouts … and much more!
Explore STRING v12.5 →
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
pbpXPenicillin-binding endopeptidase X; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme; Belongs to the beta-lactamase family. (391 aa)    
Predicted Functional Partners:
oatA
Peptidoglycan O-acetyltransferase; Evidence 1a: Function experimentally demonstrated in the studied strain; enzyme.
  
  
 0.753
dltA
D-alanine:D-alanyl-carrier protein ligase; Catalyzes the first step in the D-alanylation of lipoteichoic acid (LTA), the activation of D-alanine and its transfer onto the D- alanyl carrier protein (Dcp) DltC. In an ATP-dependent two-step reaction, forms a high energy D-alanyl-AMP intermediate, followed by transfer of the D-alanyl residue as a thiol ester to the phosphopantheinyl prosthetic group of the Dcp. D-alanylation of LTA plays an important role in modulating the properties of the cell wall in Gram-positive bacteria, influencing the net charge of the cell wall. Belongs to the ATP [...]
 
  
 0.713
ybfM
Putative membrane phosphatase; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pe: putative enzyme.
      
 0.688
dltB
Putative D-alanine esterase for lipoteichoic acid and wall teichoic acid; Involved in the D-alanylation of lipoteichoic acid (LTA). Could be involved in the transport of activated D-alanine through the membrane. D-alanylation of LTA plays an important role in modulating the properties of the cell wall in Gram-positive bacteria, influencing the net charge of the cell wall.
 
  
 0.610
dltD
Putative D-alanine esterase for lipoteichoic acid and wall teichoic acid synthesis; Involved in the D-alanylation of lipoteichoic acid (LTA). Could be responsible for the transfer of DltC-carried D-alanyl groups to cell membrane phosphatidylglycerol (PG), or alternatively of D- alanine residues from D-Ala-undecaprenol phosphate to the poly(glycerophosphate) chains of LTA. D-alanylation of LTA plays an important role in modulating the properties of the cell wall in Gram- positive bacteria, influencing the net charge of the cell wall.
  
 0.610
sigV
RNA polymerase ECF(extracytoplasmic function)-type sigma factor (sigma(V)); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Positively regulates the expression of proteins involved in stress responses against bacitracin, paraquat and tellurite. Belongs to the sigma-70 factor family. ECF subfamily.
  
  
 0.565
sigX
RNA polymerase ECF(extracytoplasmic function)-type sigma factor sigma(X); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. May be involved in the regulation of iron metabolism; Belongs to the sigma-70 factor family. ECF subfamily.
   
  
 0.554
recA
Multifunctional SOS repair factor; Multifunctional protein involved in homologous recombination, DNA repair and competence. Can catalyze the hydrolysis of (d)ATP in the presence of single-stranded DNA; prefers dATP at least in vitro, catalyzes the dATP-dependent uptake of single- stranded DNA by duplex DNA, and the dATP-dependent hybridization of homologous single-stranded DNAs (strand exchange). RecA-ATP cannot catalyze homologous DNA strand exchange; SsbA and DprA activate strand exchange by RecA-ATP. It interacts with LexA causing its activation and leading to its autocatalytic clea [...]
     
 0.547
cinA
Competence-damage inducible regulator; Evidence 2a: Function of homologous gene experimentally demonstrated in an other organism; regulator; Belongs to the CinA family.
  
  
 0.546
dltC
D-alanyl carrier protein; Carrier protein involved in the D-alanylation of lipoteichoic acid (LTA). The loading of thioester-linked D-alanine onto DltC is catalyzed by D-alanine--D-alanyl carrier protein ligase DltA. The DltC- carried D-alanyl group is further transferred to cell membrane phosphatidylglycerol (PG) by forming an ester bond, probably catalyzed by DltD. D-alanylation of LTA plays an important role in modulating the properties of the cell wall in Gram-positive bacteria, influencing the net charge of the cell wall.
 
    0.518
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
Server load: low (28%) [HD]