Human Prostasin/Prss8 Antibody

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Detection of Human Prostasin/Prss8 by Western Blot.
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Human Prostasin/Prss8 Antibody Summary

Species Reactivity
Detects human Prostasin/Prss8 in direct ELISAs and Western blots.  In direct ELISAs, less than 15% cross-reactivity with recombinant mouse Prostasin/Prss8 is observed.
Monoclonal Mouse IgG2B Clone # 530622
Protein A or G purified from hybridoma culture supernatant
Chinese hamster ovary cell line CHO-derived recombinant human Prostasin/Prss8
Accession # Q16651
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
2 µg/mL
See below
8-25 µg/mL
See below
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human Prostasin/Prss8 (Catalog # 4599-SE), see our available Western blot detection antibodies

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Prostasin/Prss8 antibody by Western Blot. View Larger

Detection of Human Prostasin/Prss8 by Western Blot. Western blot shows lysates of human prostate tissue. PVDF Membrane was probed with 2 µg/mL of Human Prostasin/Prss8 Monoclonal Antibody (Catalog # MAB4599) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Prostasin/Prss8 at approximately 40 kDa (as indicated). This experiment was conducted under non-reducing conditions and using Immunoblot Buffer Group 1.

Immunohistochemistry Prostasin/Prss8 antibody in Human Prostate by Immunohistochemistry (IHC-P). View Larger

Prostasin/Prss8 in Human Prostate. Prostasin/Prss8 was detected in immersion fixed paraffin-embedded sections of human prostate using Human Prostasin/Prss8 Monoclonal Antibody (Catalog # MAB4599) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Lower panel shows a lack of labeling if primary antibodies are omitted and tissue is stained only with secondary antibody followed by incubation with detection reagents. Specific staining was localized to cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

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Preparation and Storage

Sterile PBS to a final concentration of 0.5 mg/mL.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Prostasin/Prss8

Prostasin, also known as Prss8 and channel activating protease 1, is a 40 kDa serine protease with trypsin-like substrate specificity that is a member of the peptidase S1 family. The enzyme is synthesized from a 343 amino acid (aa) preproenzyme that contains a 29 aa signal peptide, a propeptide (aa 30-32) and a 290 aa mature chain. A second propeptide (aa 323-343) contains a 21 aa transmembrane region (GPI anchor) which can be proteolytically processed to generate a secreted form of the enzyme. The mature chain forms a heterodimer made up of a light chain (aa 33-44) and a heavy chain (aa 45-322) that are connected by disulfide bonds. In addition, aa 45-286 constitute a peptidase S1 domain, and aa 159 is a potential site for N-linked glycosylation. Mature human Prostasin is 79% and 78% aa identical to mature mouse and rat Prostasin, respectively. Prostasin is highly expressed in the prostate gland, and is expressed at lower levels in the lung, kidney, salivary gland, and pancreas. It activates amiloride-sensitive sodium channels.

Entrez Gene IDs
5652 (Human); 76560 (Mouse)
Alternate Names
CAP1; channel-activating protease 1; EC 3.4.21; EC 3.4.21.-; EC; Prostasin; protease, serine, 8; Prss8; Serine protease 8

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