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Pack Size:100μg/vial
Sample Size:30ug for $99, contact us for details
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Product Name Anti-Hepsin Antibody
SKU/Catalog Number PA2035
Description Rabbit IgG polyclonal antibody for Serine protease hepsin(HPN) detection. Tested with WB in Human;Rat.
Cite This Product Anti-Hepsin Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA2035)
Replacement Item This antibody may replace the following items: sc-18572|sc-18573|sc-33542|sc-47040 from Santa Cruz Biotechnology.
Host Rabbit
Isotype N/A
Validated Species Human, Rat
Application WB

*Our Boster Guarantee covers the use of this product in the above tested applications.

**For positive and negative control design, consult "Tissue specificity" under Protein Target Info.

Recommended Detection Systems Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot.
*Blocking peptide can be purchased at $50. Contact us for more information
**Boster also offers various secondary antibodies for Immunoflourescecne and IHC. Take advantage of the buy 1 primary antibody get 1 secondary antibody for free promotion for the entire year 2017!
Immunogen A synthetic peptide corresponding to a sequence at the C-terminus of human Hepsin(392-410aa KVSDFREWIFQAIKTHSEA), different from the related mouse sequence by two amino acids, and from the related rat sequence by one amino acid.
Cross Reactivity No cross reactivity with other proteins
Pack Size 100μg/vial


Clonality Polyclonal
Form Lyophilized
Contents Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.
*carrier free antibody available upon request.
Concentration Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Storage At -20˚C for one year. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for a longer time.Avoid repeated freezing and thawing.
Purification Immunogen affinity purified.
Isotype N/A

Protein Target Info (Source:

You can check the tissue specificity below for information on selecting positive and negative control.

Gene Name HPN
Protein Name Serine protease hepsin
Molecular Weight 45011 MW
Protein Function Plays an essential role in cell growth and maintenance of cell morphology. May mediate the activating cleavage of HGF and MST1/HGFL. Plays a role in the proteolytic processing of ACE2. .
Tissue Specificity Present in most tissues, with the highest level in liver.
Sequence Similarities Belongs to the peptidase S1 family.
Subcellular Localization Membrane; Single-pass type II membrane protein.
Uniprot ID P05981
Alternative Names Serine protease hepsin;;Transmembrane protease serine 1;Serine protease hepsin non-catalytic chain;Serine protease hepsin catalytic chain;HPN;TMPRSS1;
Research Areas |signal transduction|cytoskeleton / ecm|extracellular matrix|ecm enzymes|kallikreins| cancer|invasion/microenvironment| cell biology|proteolysis / ubiquitin|proteolytic enzymes|serine protease|
*if product is indicated to react with multiple species, protein info is based on the human gene.

Background for Serine protease hepsin

HPN(Hepsin), also known as TMPRSS1, is an enzyme that in humans is encoded by the HPN gene. Tsuji et al.(1991) mapped the hepsin gene to 19q11-q13.2. Using cDNA microarrays, Dhanasekaran et al.(2001) examined gene expression profiles of more than 50 normal and neoplastic prostate specimens and 3 common prostate cancer cell lines. Signature expression profiles of normal adjacent prostate, benign prostatic hypertrophy, localized prostate cancer, and metastatic, hormone-refractory prostate cancer were determined. In 3 different human cell lines, Guipponi et al.(2008) found that TMPRSS1 was stably anchored in the endoplasmic reticulum.

Anti-Hepsin Antibody Images

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Anti-Hepsin Antibody
Anti-Hepsin antibody, PA2035, Western blotting
Lane 1: 293T Cell Lysate
Lane 2: NRK Cell Lysate
Lane 3: HELA Cell Lysate
Lane 4: PANC Cell Lysate
Lane 5: MFC-7 Cell Lysate
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Customer Q&As

Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
A: Yes, please contact us at for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact
Q: What should I use for negative control?
A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?
A: You can find the immunogen sequence under "Immunogen" and clonality in the product name.
Q: What is the expected band size? Why is it different than the observed band size?
A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:
1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected
2. Post-translational cleavage: this can cause smaller bands and or multiple bands

3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody.

4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.
5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher.,
Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?
A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?
A: Check our protocols under the tech support tab.