Staphylococcal surface adhesin (null)

Staphylococcal surface adhesins are a diverse group of surface-exposed proteins expressed by Staphylococcus species such as Staphylococcus aureus. These proteins are covalently anchored to the cell wall via the action of sortase enzymes and include several structurally and functionally defined families such as the MSCRAMMs (Microbial Surface Components Recognizing Adhesive Matrix Molecules), G5-E repeat proteins, and SERAMs (secreted expanded repertoire adhesive molecules)[1][7]. Their primary biological functions are mediating strong adherence to host extracellular matrix components (e.g., collagen, fibronectin), initiating and stabilizing biofilm formation on biotic and abiotic surfaces, evading host immune responses, assisting in host cell invasion, and facilitating iron acquisition[1][4][6]. Many individual staphylococcal surface adhesins, such as clumping factor A (ClfA), fibronectin-binding proteins (FnBPs), and collagen adhesin (Cna), have been directly implicated in the pathogenesis of various infections (e.g., skin and soft tissue infections, device-associated infections, endocarditis)[1][6]. Some members or domains of these proteins serve as promising vaccine or therapeutic targets, particularly in approaches using monoclonal antibodies to block host–pathogen interactions and biofilm formation[2][6]. However, the redundancy, diversity, and immune-evasive mechanisms of these adhesins present ongoing challenges to effective targeting[6]. Note on terminology: - "Staphylococcal surface adhesins" refers to a collective family/group of proteins, not a single molecular entity[1][7]. There is no universally accepted unique molecular target under this group name; structured databases typically catalogue individual adhesins (e.g., ClfA, Cna, FnBPA) as specific targets. Therefore, the entry is marked is_incorrect: true due to being too broad and not corresponding to a specific, singular target protein entity. If precise mapping to individual adhesin proteins is required, please specify the particular adhesin of interest.

Other names

Staphylococcal cell wall-anchored proteinStaphylococcal adhesinStaphylococcus aureus surface proteinStaphylococcal MSCRAMM (if specific member)CWA protein (if generic)

Inhibition of bacterial adhesion by antibody blockade[2]