Staphylococcus aureus cell surface protein

The term "Staphylococcus aureus cell surface protein homologs" refers to a diverse group of immunogenic proteins expressed on the surface of *Staphylococcus aureus* bacteria, which are collectively crucial for adherence to host tissues, immune evasion, and pathogenesis[2][3][4][7]. These proteins include well-characterized families such as Protein A (SpA), clumping factors (ClfA, ClfB), iron-regulated surface determinant proteins (IsdA, IsdB), and others (Eap, EbpS, Sbi)[2][4][7][8]. They function as adhesins, binding to a range of host extracellular matrix molecules (e.g., fibronectin, laminin) and interfering with immune recognition by binding immunoglobulins or promoting immune cell evasion[2][3][7][8]. Because of their essential role in infection and their surface accessibility, many of these proteins are active research targets for the development of vaccines, monoclonal antibody therapies, and diagnostic biomarkers[2][4][6]. However, the collective designation "cell surface protein homologs" is not standard for any specific protein or gene, and instead describes a broad, functionally redundant repertoire of proteins. Thus, for structured bioinformatic or pharmacological databases, it is generally necessary to specify which individual protein is of interest (such as Protein A, ClfB, IsdB, etc.) rather than refer to this class as a collective therapeutic target[2][4][6][8]. **Note:** - is_incorrect: true. This is not a single canonical target, but rather an imprecise or overly broad group describing a general class of proteins. Individual members (e.g., Protein A, ClfB, IsdB) are therapeutic targets, but "Staphylococcus aureus cell surface protein homologs" is not recognized as a single molecule or gene and could lead to ambiguity in structured data applications[2][4]. - Individual cell surface proteins differ in sequence, structure, and specific functions, but collectively play fundamental and overlapping roles in staphylococcal infection biology[2][3][4][7][8]. For structured targeting, use precise identifiers for each protein or gene.

Other names

Staphylococcal surface proteinStaphylococcus aureus surface protein*S. aureus* surface proteinstaphylococcal adhesinProtein A (SpA)Clumping factor (Clf)Iron-regulated surface determinant protein (Isd)Extracellular adherence protein (Eap)Elastin-binding protein (EbpS)others (see note below)

Inhibition of adhesion or immune evasion, vaccine-induced antibody neutralization, targeted antibody-dependent opsonophagocytosis