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
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[Homology]
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sdrDsdrD protein, putative; Cell surface-associated calcium-binding protein which plays an important role in adhesion and pathogenesis. Mediates interactions with components of the extracellular matrix such as host DSG1 to promote bacterial adhesion to host cells. Contributes to the resistance to killing by innate immune components such as neutrophils present in blood and thus attenuates bacterial clearance. (1349 aa)    
Predicted Functional Partners:
sdrC
sdrC protein, putative; Cell surface-associated calcium-binding protein which plays an important role in adhesion and pathogenesis. Mediates interactions with components of the extracellular matrix such as host NRXN1 to promote bacterial adhesion.
 
  
0.944
spa
Protein A; Plays a role in the inhibition of the host innate and adaptive immune responses. Possesses five immunoglobulin-binding domains that capture both the fragment crystallizable region (Fc region) and the Fab region (part of Ig that identifies antigen) of immunoglobulins. In turn, Staphylococcus aureus is protected from phagocytic killing via inhibition of Ig Fc region. In addition, the host elicited B-cell response is prevented due to a decrease of antibody-secreting cell proliferation that enter the bone marrow, thereby decreasing long-term antibody production. Inhibits osteoge [...]
     
 0.826
fnbA
Fibronectin-binding protein precursor, putative; Possesses multiple, substituting fibronectin (Fn) binding regions, each capable of conferring adherence to both soluble and immobilized forms of Fn. This confers to S.aureus the ability to invade endothelial cells both in vivo and in vitro, without requiring additional factors, although in a slow and inefficient way through actin rearrangements in host cells. This invasion process is mediated by integrin alpha-5/beta-1. Promotes bacterial attachment to both soluble and immobilized forms of fibrinogen (Fg) by means of a unique binding sit [...]
 
   
 0.700
ebpS
Elastin binding protein; Promotes binding of soluble elastin peptides and tropoelastin to S.aureus cells although it is not able to promote bacterial adherence to immobilized elastin and, therefore, is not a microbial surface component recognizing adhesive matrix molecule (MSCRAMM). May be involved in sensing the environment or in nutrient transport, since its loss caused a growth defect.
  
   
 0.617
isdA
Conserved hypothetical protein; Cell wall-anchored surface receptor that participates in the extraction of heme from oxidized methemoglobin/metHb to enable growth on hemoglobin as a sole iron source (By similarity). Receives heme from IsdB and transfers it to IsdC (By similarity). Plays also a role in the inhibition of host immune response. Protects S.aureus against the bactericidal protease activity of apolactoferrin. Enhances bacterial cellular hydrophobicity, which renders S.aureus resistant to bactericidal human skin fatty acids as well as to beta-defensins and cathelicidin. Also b [...]
      
 0.573
srtA
Sortase, putative; Transpeptidase that anchors surface proteins to the cell wall. Recognizes and modifies its substrate by proteolytic cleavage of a C-terminal sorting signal. Following cleavage, a covalent intermediate is formed via a thioester bond between the sortase and its substrate, which is then transferred and covalently attached to the cell wall. This sortase recognizes a Leu-Pro-x-Thr-Gly (LPXTG) motif, which is cleaved by the sortase between the threonine and glycine residues. Utilizes lipid II as the peptidoglycan substrate for the sorting reaction. Responsible for the disp [...]
     
 0.557
sraP
Conserved hypothetical protein; Mediates binding to human platelets, possibly through a receptor-ligand interaction. Probably associated with virulence in endovascular infection. Plays a positive role in biofilm formation, possibly by self-association via the non-repeat region (NRR or binding region, BR). Binds to and plays a role in human lung epithelial cell invasion via the L-lectin module of its NRR domain; N-acetylneuraminic acid (Neu5Ac) inhibits binding. Treatment of host cells with neuraminidase decreases adherence of S.aureus cells, suggesting SraP recognizes a host terminal N [...]
 
   
 0.549
hly
Alpha-hemolysin precursor; Alpha-toxin binds to the membrane of eukaryotic cells resulting in the release of low-molecular weight molecules and leading to an eventual osmotic lysis. Inhibits host neutrophil chemotaxis to the lesion region (Probable). Heptamer oligomerization and pore formation is required for lytic activity (By similarity). Belongs to the aerolysin family.
      
 0.548
sasG
Conserved hypothetical protein; Promotes adhesion of bacterial cells to human squamous nasal epithelial cells, a phenomenon which is likely to be important in nasal colonization. Forms short, extremely dense and thin fibrils all over the bacterial surface. Does not bind to either buccal cells or non- differentiated keratinocytes. Promotes cellular aggregation leading to biofilm formation.
  
   
0.534
atl
Bifunctional autolysin precursor, putative; Endohydrolysis of the di-N-acetylchitobiosyl unit in high- mannose glycopeptides and glycoproteins containing the -[(Man)5(GlcNAc)2]-Asn structure. One N-acetyl-D-glucosamine residue remains attached to the protein; the rest of the oligosaccharide is released intact. Cleaves the peptidoglycan connecting the daughter cells at the end of the cell division cycle, resulting in the separation of the two newly divided cells. Acts as an autolysin in penicillin-induced lysis (By similarity); In the C-terminal section; belongs to the glycosyl hydrolas [...]
  
   
 0.530
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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