| Tissue Specificity | Predominantly expressed in osteoclasts (bones). Expressed in thyroid epithelial cells. |
| Function | Thiol protease 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. Involved in the release of thyroid hormone thyroxine (T4) by limited proteolysis of TG/thyroglobulin in the thyroid follicle lumen. |
| Protein Name | Cathepsin KCathepsin OCathepsin O2Cathepsin X |
| Database Links | Reactome: R-HSA-1442490Reactome: R-HSA-1474228Reactome: R-HSA-1592389Reactome: R-HSA-1679131Reactome: R-HSA-2132295Reactome: R-HSA-8939242 |
| Cellular Localisation | LysosomeSecretedApical Cell MembranePeripheral Membrane ProteinExtracellular SideLocalizes To The Lumen Of Thyroid Follicles And To The Apical Membrane Of Thyroid Epithelial Cells |
| Alternative CLIA Names | Cathepsin K CLIA kitCathepsin O CLIA kitCathepsin O2 CLIA kitCathepsin X CLIA kitCTSK CLIA kitCTSO CLIA kitCTSO2 CLIA kit |
| Specificity | This kit recognizes Human CTSK in samples. No significant cross-reactivity or interference between Human CTSK and analogues was observed. |
| Reproducibility | Both intra-CV and inter-CV are |
Information sourced from Uniprot.org
| Item | Specifications | Storage |
| Micro CLIA Plate (Dismountable) | 96T: 8 wells ×12 strips strips | -20℃, 6 months |
| Reference Standard | 96T: 2 vials 48T: 1 vial | -20℃, 6 months |
| Concentrated Biotinylated Detection Ab (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃, 6 months |
| Concentrated HRP Conjugate (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃ (Protect from light), 6 months |
| Reference Standard & Sample Diluent | 1 vial, 20 mL | 2-8°C, 6 months |
| Biotinylated Detection Ab Diluent | 1 vial, 14 mL | 2-8°C, 6 months |
| HRP Conjugate Diluent | 1 vial, 14 mL | 2-8°C, 6 months |
| Concentrated Wash Buffer (25×) | 1 vial, 30 mL | 2-8°C, 6 months |
| Substrate Reagent A | 1 vial, 5 mL | 2-8℃ (Protect from light) |
| Substrate Reagent B | 1 vial, 5 mL | 2-8℃ (Protect from light) |
| Plate Sealer | 5 pieces | |
| Manual | 1 copy | |
| Certificate of Analysis | 1 copy | |
| Sample Type | Range (%) | Average Recovery (%) |
| Serum(n=8) | 87-99 | 94 |
| EDTA plasma(n=8) | 87-98 | 92 |
| Cell culture media(n=8) | 91-107 | 99 |
| | Intra-assay Precision | Intra-assay Precision | Intra-assay Precision | Inter-assay Precision | Inter-assay Precision | Inter-assay Precision |
| Sample | 1.00 | 2.00 | 3.00 | 1.00 | 2.00 | 3.00 |
| n | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 |
| Mean (pg/mL) | 107.50 | 247.33 | 853.64 | 115.29 | 243.36 | 802.14 |
| Standard deviation | 13.44 | 18.10 | 56.60 | 14.72 | 23.65 | 56.55 |
| CV (%) | 12.50 | 7.32 | 6.63 | 12.77 | 9.72 | 7.05 |
