| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Cathepsin K;3.4.22.38;Cathepsin O;Cathepsin O2;Cathepsin X;CTSK;CTSO, CTSO2; |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | E. coli-derived human Cathepsin K recombinant protein (Position: A115-M329). Human Cathepsin K shares 86.9% and 88.8% amino acid (aa) sequence identity with mouse and rat Cathepsin K, respectively. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
This antibody is intended for detection of CTSK (Cathepsin K) in biological samples using common immunoassay formats. It is typically selected based on target identity, species reactivity, clonality/clone information, and detection modality.
Vendor notes: Boster Bio Anti-Cathepsin K/CTSK Antibody Picoband® catalog # PB9856. Tested in IHC, WB applications. This antibody reacts with Human. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.
Key elements and design rationale
- Antibody format: Rabbit Polyclonal Rabbit IgG
- Immunogen / epitope context: E. coli-derived human Cathepsin K recombinant protein (Position: A115-M329). Human Cathepsin K shares 86.9% and 88.8% amino acid (aa) sequence identity with mouse and rat Cathepsin K, respectively. (reported region: A115-M329).
- Molecular weight context: reported MW: 45 kDa; calculated MW: 36966 MW
- Reactivity: Human
- Applications: IHC, WB
As a polyclonal antibody, the reagent recognizes multiple epitopes on the target, which can improve detection robustness but may increase sensitivity to sample-dependent epitope changes.
Biological background
Cathepsin K; Cathepsin K. Cathepsin K, abbreviated?CTSK, is an?enzyme?that in humans is encoded by the?CTSK?gene. It is mapped to 1q21. The protein encoded by this gene is a lysosomal?cysteine protease?involved in bone remodeling and resorption. And this protein, which is a member of the peptidase C1 protein family, is expressed predominantly in?osteoclasts. Additionally, the enzyme's ability to catabolize?elastin,?collagen, and?gelatin?allow it to break down?bone?and cartilage. This catabolic activity is also partially responsible for the loss of lung elasticity and recoil inemphysema. Cathepsin K?inhibitors, such as?odanacatib, show great potential in the treatment of?osteoporosis. Cathepsin K is degraded by Cathepsin S, called Controlled Cathepsin Cannibalism. Functional note: Closely involved in osteoclastic bone resorption and may participate partially in the disorder of bone remodeling. Displays potent endoprotease activity against fibrinogen at acid pH. May play an important role in extracellular matrix degradation. Reported localization: Lysosome. Expression/tissue context: Predominantly expressed in osteoclasts (bones).
Research relevance and current trends
- Angiogenesis: Researchers commonly examine how CTSK (Cathepsin K) relates to this theme using model systems and orthogonal readouts.
- Atherosclerosis: Researchers commonly examine how CTSK (Cathepsin K) relates to this theme using model systems and orthogonal readouts.
- Cancer: Researchers commonly examine how CTSK (Cathepsin K) relates to this theme using model systems and orthogonal readouts.
Common research applications
- Western blotting: compare relative CTSK (Cathepsin K) levels across conditions; band patterns may reflect isoforms and processing.
- IHC/IHC-F: assess spatial distribution of CTSK (Cathepsin K) across tissue regions and cell types using matched controls.
Notes for experimental interpretation
- Specificity notes: No cross reactivity with other proteins.
- Cross-reactivity: No cross-reactivity with other proteins.
- Isoforms and PTMs: Apparent size and signal patterns can differ across splice isoforms, proteolytic processing, and post-translational modifications.
- Controls: Include an isotype control (as relevant), no-primary control for imaging, and orthogonal validation such as KD/KO samples when available.
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.
