CTSK Antibody (Center R222)
Purified Rabbit Polyclonal Antibody (Pab)
- SPECIFICATION
- CITATIONS: 1
- PROTOCOLS
- BACKGROUND
Application ![]()
| IHC-P, FC, WB, E |
---|---|
Primary Accession | P43235 |
Other Accession | P43236, Q9GLE3, P61276, Q5E968 |
Reactivity | Human, Mouse |
Predicted | Bovine, Monkey, Pig, Rabbit |
Host | Rabbit |
Clonality | Polyclonal |
Isotype | Rabbit IgG |
Calculated MW | 36966 Da |
Antigen Region | 207-237 aa |
Gene ID | 1513 |
---|---|
Other Names | Cathepsin K, Cathepsin O, Cathepsin O2, Cathepsin X, CTSK, CTSO, CTSO2 |
Target/Specificity | This CTSK antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 207-237 amino acids from the Central region of human CTSK. |
Dilution | WB~~1:2000 IHC-P~~1:100 FC~~1:10~50 |
Format | Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification. |
Storage | Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
Precautions | CTSK Antibody (Center R222) is for research use only and not for use in diagnostic or therapeutic procedures. |
Name | CTSK |
---|---|
Synonyms | CTSO, CTSO2 |
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 (PubMed:11082042). |
Cellular Location | Lysosome. Secreted. Apical cell membrane; Peripheral membrane protein; Extracellular side. Note=Localizes to the lumen of thyroid follicles and to the apical membrane of thyroid epithelial cells |
Tissue Location | Predominantly expressed in osteoclasts (bones) (PubMed:7805878). Expressed in thyroid epithelial cells (PubMed:11082042). |

Provided below are standard protocols that you may find useful for product applications.
Background
The protein encoded by this gene is a lysosomal cysteine proteinase involved in bone remodeling and resorption. This protein, which is a member of the peptidase C1 protein family, is predominantly expressed in osteoclasts. However, the encoded protein is also expressed in a significant fraction of human breast cancers, where it could contribute to tumor invasiveness. Mutations in this gene are the cause of pycnodysostosis, an autosomal recessive disease characterized by osteosclerosis and short stature. This gene may be subject to RNA editing.
References
Lendeckel,U., Neurochem. Int. 54 (7), 410-417 (2009)

If you have used an Abcepta product and would like to share how it has performed, please click on the "Submit Review" button and provide the requested information. Our staff will examine and post your review and contact you if needed.
If you have any additional inquiries please email technical services at tech@abcepta.com.