Human Matriptase/ST14 Catalytic Domain Alexa Fluor® 405-conjugated Antibody
R&D Systems, part of Bio-Techne | Catalog # IC3946V
Conjugate
Catalog #
Key Product Details
Species Reactivity
Human
Applications
Intracellular Staining by Flow Cytometry
Label
Alexa Fluor 405 (Excitation = 405 nm, Emission = 421 nm)
Antibody Source
Monoclonal Mouse IgG1 Clone # 416802
Product Specifications
Immunogen
E. coli-derived recombinant human Matriptase/ST14 Catalytic Domain
Val615-Val855
Accession # Q9Y5Y6
Val615-Val855
Accession # Q9Y5Y6
Specificity
Detects human Matriptase/ST14 Catalytic Domain in direct ELISAs and Western blots.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG1
Applications
Application
Recommended Usage
Intracellular Staining by Flow Cytometry
0.25-1 µg/106 cells
Sample: PC-3 human prostate cancer cell line fixed with paraformaldehyde and permeabilized with saponin
Sample: PC-3 human prostate cancer cell line fixed with paraformaldehyde and permeabilized with saponin
Formulation, Preparation, and Storage
Purification
Protein A or G purified from hybridoma culture supernatant
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Matriptase/ST14
Human Matriptase, encoded by the ST14 (suppression of tumorogenicity 14) gene, is also known as tumor associated differentially expressed gene 15 protein/TADG‑15), epithin, and membrane-type serine protease 1/MT-SP1 (1). Predicted to have a significant role in tumor biology, Matriptase may be a novel target for anti-cancer therapy (2). However, expressed in most human epithelia, Matriptase is also important in several physiological processes (1). For example, it activates prostasin to initiate a protease cascade that is essential for epidermal differentiation (3), and it converts a single-chain IGFBP-rp1 into the two-chain form (4). Matriptase is a type II transmembrane serine protease with a complex modular structure (1). The 855 amino acid (aa) sequence of human Matriptase consists of a cytoplasmic tail (aa 1‑55), a transmembrane domain (aa 56‑76), and an extracellular portion (aa 77‑855). The latter contains the following domains: SEA (aa 86‑201), two CUBs (aa 214‑334 and 340‑447), four LDLRAs (aa 452‑486, 487‑523, 524‑560, and 566‑603), and a serine protease (aa 615‑855). The physiological activation of the single-chain zymogen requires the cleavage at the SEA domain within the ER or Golgi, association with HAI-1, which facilitates the transport of the protease to the cell surface, and auto-cleavage at QAR-V(615)VGG (1). The activated Matriptase is inhibited by HAI-1, and the resulting HAI-1 complex can be shed from the cell surface (1).
References
- List, K. et al. (2006) Mol. Med. 12:1.
- Uhland, K. (2006) Cell. Mol. Life Sci. 63:2968.
- Netzel-Arnett, S. et al. (2006) J. Biol. Chem. 281:32941.
- Ahmed, S. et al. (2006) FEBS J. 273:615.
Alternate Names
Epithin, MTSP1, PRSS14, SNC19, ST14, TADG-15, TMPRSS14
Gene Symbol
ST14
UniProt
Additional Matriptase/ST14 Products
Product Specific Notices
This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.
For research use only
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