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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.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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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.
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lytRTwo-component response regulator, putative; Member of the two-component regulatory system LytR/LytS that regulates genes involved in autolysis, programmed cell death, biofilm formation and cell wall metabolism. Participates also in sensing and responding to host defense cationic antimicrobial peptides (HDPs). Upon phosphorylation by LytS, functions as a transcription regulator by direct binding to promoter regions of target genes including lrgA and lrgB, to positively regulate their expression. (246 aa)    
Predicted Functional Partners:
lytS
Two-component sensor histidine kinase, putative; Member of the two-component regulatory system LytR/LytS that regulates genes involved in autolysis, programmed cell death, biofilm formation and cell wall metabolism. Participates also in sensing and responding to host defense cationic antimicrobial peptides (CAMPs). Functions as a sensor protein kinase which is autophosphorylated at a histidine residue and transfers its phosphate group to the conserved aspartic acid residue in the regulatory domain of LytR. In turn, LytR binds to the upstream promoter regions of target genes including l [...]
 
 0.999
lrgB
Holin-like protein LrgB, putative; Inhibits the expression or activity of extracellular murein hydrolases by interacting, possibly with LrgA, with the holin-like proteins CidA and/or CidB. The LrgAB and CidAB proteins may affect the proton motive force of the membrane. Increases tolerance to penicillin possibly by inhibiting the formation of the CidAB holin-like complexes within the membrane, thus reducing penicillin-induced lethality. Possibly plays a role in programmed cell death (PCD), triggering PCD in response to penicillin, and possibly other antibiotics, and environmental stresses.
   
 0.951
lrgA
Conserved hypothetical protein; Inhibits the expression or activity of extracellular murein hydrolases by interacting, possibly with LrgB, with the holin-like proteins CidA and/or CidB. The LrgAB and CidAB proteins may affect the proton motive force of the membrane. Increases tolerance to penicillin possibly by inhibiting the formation of the CidAB holin-like complexes within the membrane, thus reducing penicillin-induced lethality. Possibly plays a role in programmed cell death (PCD), triggering PCD in response to penicillin, and possibly other antibiotics, and environmental stresses.
 
   
 0.893
hptS
Conserved hypothetical protein; Member of the two-component regulatory system HptS/HptR that regulates genes involved in hexose phosphate transport system in response to changes in extracellular phosphate sources. May act as a sensor protein kinase which is autophosphorylated at a histidine residue and transfers its phosphate group to the conserved aspartic acid residue in the regulatory domain of HptS. In turn, HptS antagonizes CcpA-dependent transcription of a subset of CcpA-regulated genes involved in antibiotic susceptibility.
 
  
 0.831
sle1
Autolysin precursor, putative; Peptidoglycan hydrolase involved in the splitting of the septum during cell division. Binds to both alpha and beta-chains of human fibrinogen as well as fibronectin, which suggests a role in the colonization of host factor-coated material or host tissue. Also exhibits lytic activity against S.carnosus and S.aureus cells but not against M.luteus cells.
  
   
 0.543
msrR
Transcriptional regulator, putative; Involved in SarA attenuation. Affects resistance to oxacillin and teicoplanin, as well as the synthesis of virulence factors. Belongs to the LytR/CpsA/Psr (LCP) family.
      
 0.538
vraR
DNA-binding response regulator VraR, putative; Member of the two-component regulatory system VraS/VraR involved in the control of the cell wall peptidoglycan biosynthesis. Upon cellular stress, the histidine kinase VraS transfers the phosphoryl group onto VraR. Upon phosphorylation, VraR dimerizes at the N-terminal domain. In turn, phosphorylation-induced dimerization expand and enhance the VraR binding to its own promoter leading to increased expression and subsequent modulation of as many as 40 genes, which ultimately constitute the S.aureus response to cell wall damage. In addition, [...]
  
   
 0.535
scdA
ScdA protein, putative; Di-iron-containing protein involved in the repair of iron- sulfur clusters damaged by oxidative and nitrosative stress conditions.
     
 0.510
saeR
Response regulator, putative; Member of the two-component regulatory system SaeR/SaeS involved in the regulation of staphylococcal virulence factors in a strain-dependent fashion. Probably functions as a transcriptional regulator via a specific DNA-binding domain, recognizing motifs near the promoter sequences of target genes. SaeR/SaeS activates the expression of exoproteins involved in adhesion and invasion of host cells, including hemolysins (Hla, Hlb), Coa, DNase, Spa and cell wall- associated proteins (Emp, Eap, FnbA). Acts probably downstream of the Agr system in the regulatory c [...]
  
   
 0.484
cidB
Conserved hypothetical protein; Increases the activity of extracellular murein hydrolases possibly by mediating their export via hole formation. Inhibited by the antiholin-like proteins LrgAB. In an unstressed cell, the LrgAB products probably inhibit the function of the CidAB proteins. When a cell is stressed by the addition of antibiotics or by other factors in the environment, the CidAB proteins possibly oligomerize within the bacterial cell membrane, creating lesions that disrupt the proton motive force, which in turn results in loss of cell viability. These lesions are also hypoth [...]
   
 0.454
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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