| Field | Specification |
|---|---|
| Mfr No | |
| Clonality | |
| Host | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human CTSS was used as the immunogen for the CTSS antibody. |
| Isotype | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage | |
| Target | |
| UniProt # |
Overview
CTSS Antibody / Cathepsin S is a anti-CTSS Rabbit antibody Polyclonal (rabbit origin) supplied in Lyophilized format. Recommended for workflows such as Western blot (WB), Flow cytometry (FACS) with listed reactivity in Human.
Key elements and design rationale
- Target: CTSS
- Antibody details: Rabbit, Polyclonal (rabbit origin), isotype Rabbit IgG
- Format: Lyophilized
- Applications (as listed): WB, FACS
Biological background
Functionally, CTSS antibody identifies a 331-amino-acid protein synthesized as an inactive proenzyme that undergoes autocatalytic cleavage to form an active mature enzyme in acidic endosomes. Cathepsin S hydrolyzes invariant chain peptides to allow loading of antigenic peptides onto MHC class II molecules, supporting adaptive immune responses. It also contributes to extracellular matrix remodeling during inflammation and immune cell migration.
The CTSS gene is located on chromosome 1q21.3 and is highly expressed in lymphoid tissues and mononuclear phagocytes. Cathepsin S activity is regulated by cystatin protease inhibitors and by pH-dependent activation within the lysosomal environment. Its stability at neutral pH distinguishes it from other cathepsins, enabling extracellular activity during inflammation.
Pathologically, excessive CTSS activity has been associated with autoimmune diseases, atherosclerosis, and cancer. Inhibiting CTSS reduces antigen presentation and inflammatory damage, making it a therapeutic target for chronic inflammatory disorders. Research using CTSS antibody supports studies in immunology, inflammation, and protease biology.
CTSS antibody is validated for western blotting, immunohistochemistry, and enzymatic assays to detect Cathepsin S in immune tissues and cultured cells.
Structurally, Cathepsin S belongs to the papain family of cysteine proteases and contains a catalytic dyad of cysteine and histidine within its active site. This antibody facilitates detection and quantification of CTSS in studies of antigen processing, protease regulation, and immune signaling.
Research relevance and current trends
- Connecting protein-level changes to phenotype using orthogonal readouts (genetic perturbation, transcriptomics, imaging).
- Considering isoforms and post-translational regulation when interpreting protein-level changes.
- Comparing results across species and model systems with matched controls.
Common research applications
- Western blotting: compare relative abundance and activation-state changes across conditions.
- Flow cytometry: quantify target-positive populations and signal shifts at single-cell resolution.
Interpret changes in signal alongside appropriate controls and, when relevant, in parallel with total-protein or pathway readouts.
Notes for experimental interpretation
- Signal can reflect expression level, isoform composition, and post-translational state; interpret results in the context of your model system and stimuli.
- Species differences and sample matrices can influence epitope recognition; prioritize matched controls and orthogonal confirmation when feasible.
Antibody notes: Polyclonal antibodies recognize multiple epitopes, which can broaden the epitope footprint and may increase sensitivity in some contexts.
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
