Human Hepsin Antibody

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Detection of Human Hepsin by Western Blot.
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Human Hepsin Antibody Summary

Species Reactivity
Detects human Hepsin in direct ELISAs and Western blots.
Polyclonal Sheep IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant human Hepsin
Ser46-Leu417 with Asp161Glu and Arg162Lys substitutions
Accession # P05981
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

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 Hepsin antibody by Western Blot. View Larger

Detection of Human Hepsin by Western Blot. Western blot shows lysates of human prostate tissue, human liver tissue, LNCaP human prostate cancer cell line, and PC-3 human prostate cancer cell line. PVDF membrane was probed with 2 µg/mL of Sheep Anti-Human Hepsin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4776) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Hepsin at approximately 45 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 7.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
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: Hepsin

Hepsin, also known as TMPRSS1, is a Type II membrane protein with an extracellular serine protease domain (1). It is most highly expressed in liver, but is also present in many other tissues, notably lung, kidney, and skeletal muscle (2). A soluble form of Hepsin lacking the transmembrane domain has been identified (3). Hepsin is capable of activating Factor VII, and may initiate blood coagulation at the cell surface (4). Hepsin is overexpressed in various human tumors, including prostate (5), and is considered to be a biomarker for prostate cancer (6).

  1. Leytus, S.P. et al. (1988) Biochemistry 27:1067.
  2. Tsuji, A. et al. (1991) J. Biol. Chem. 266:16948.
  3. Li, Y. et al. (2005) Biomed. Biochim. Acta 1681:157.
  4. Kazama, Y. et al. (1995) J. Biol. Chem. 270:66.
  5. Dhanasekaran, S.M. et al. (2001) Nature 412:822.
  6. Wu, Q. and Parry, G. (2007) Front. Biosci. 12:5052.
Entrez Gene IDs
3249 (Human); 15451 (Mouse); 29135 (Rat)
Alternate Names
EC 3.4.21; EC; Hepsin; HPN; serine protease hepsin catalytic chain; serine protease hepsin; TMPRSS1 ; TMPRSS1serine protease hepsin non-catalytic chain; Transmembrane protease serine 1; transmembrane protease, serine 1

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Human Hepsin Antibody
By Anonymous on 05/22/2019
Application: ELISA Sample Tested: Serum and Plasma Species: Human

AF4776 was used as the detection antibody in a sandwich ELISA with MAB4776 as the capture antibody.