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:
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Cooccurrence
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Experiments
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Textmining
[Homology]
Score
mprFConserved hypothetical protein; Catalyzes the transfer of a lysyl group from L-lysyl- tRNA(Lys) to membrane-bound phosphatidylglycerol (PG), which produces lysylphosphatidylglycerol (LPG), a major component of the bacterial membrane with a positive net charge. LPG synthesis contributes to bacterial virulence as it is involved in the resistance mechanism against cationic antimicrobial peptides (CAMP) produces by the host's immune system (defensins, cathelicidins) and by the competing microorganisms (bacteriocins). In fact, the modification of anionic phosphatidylglycerol with positively [...] (840 aa)    
Predicted Functional Partners:
dltA
D-alanine-activating enzyme; 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-dependent AMP [...]
   
  
 0.799
rpoB
RNA polymerase beta chain, putative; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
      
 0.786
rpoC
DNA directed RNA polymerase beta-prime chain, putative; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
      
 0.779
ABD31357.1
Cardiolipin synthetase, putative; Catalyzes the reversible phosphatidyl group transfer from one phosphatidylglycerol molecule to another to form cardiolipin (CL) (diphosphatidylglycerol) and glycerol.
 
  
 0.699
dltD
Extramembranal protein; 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.
  
   
 0.698
graS
Conserved hypothetical protein; Member of the two-component regulatory system GraR/GraS involved in resistance against cationic antimicrobial peptides (CAMPs). Functions as a sensor protein kinase which phosphorylates GraR through the auxiliary protein GraX. In turn, GraR up-regulates many genes such as adhesins, exoproteins, transporters, toxins, and proteins involved in cell wall synthesis. Down-regulates the expression of many genes involved in RNA and amino acid synthesis or glycolysis. Confers resistance to vancomycin, polymyxin B, lysozyme and LL-37.
   
  
 0.694
ABD30408.1
Cardiolipin synthetase, putative; Catalyzes the reversible phosphatidyl group transfer from one phosphatidylglycerol molecule to another to form cardiolipin (CL) (diphosphatidylglycerol) and glycerol.
 
  
 0.693
walK
Sensory box histidine kinase VicK, putative; Member of the two-component regulatory system WalK/WalR that regulates genes involved in cell wall metabolism, virulence regulation, biofilm production, oxidative stress resistance and antibiotic resistance via direct or indirect regulation of autolysins. Functions as a sensor protein kinase which is autophosphorylated at a histidine residue in the dimerization domain and transfers its phosphate group to the conserved aspartic acid residue in the regulatory domain of WalR. In turn, WalR binds to the upstream promoter regions of the target ge [...]
     
 0.687
prs
Ribose-phosphate pyrophosphokinase, putative; Involved in the biosynthesis of the central metabolite phospho-alpha-D-ribosyl-1-pyrophosphate (PRPP) via the transfer of pyrophosphoryl group from ATP to 1-hydroxyl of ribose-5-phosphate (Rib- 5-P); Belongs to the ribose-phosphate pyrophosphokinase family. Class I subfamily.
   
  
 0.668
murA-2
UDP-N-acetylglucosamine 1-carboxyvinyltransferase; Cell wall formation. Adds enolpyruvyl to UDP-N- acetylglucosamine; Belongs to the EPSP synthase family. MurA subfamily.
      
 0.660
Your Current Organism:
Staphylococcus aureus
NCBI taxonomy Id: 93061
Other names: S. aureus subsp. aureus NCTC 8325, Staphylococcus aureus NCTC 8325, Staphylococcus aureus subsp. aureus NCTC 8325, Staphylococcus aureus subsp. aureus str. NCTC 8325, Staphylococcus aureus subsp. aureus strain NCTC 8325
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