Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin

Label

Janelia Fluor 669

Antibody Source

Polyclonal Rabbit IgG
View all TMPRSS2 Primary Antibodies »

Product Specifications

Immunogen

Produced in rabbits immunized with E. coli-derived Human TMPRSS2 fragment.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Applications for TMPRSS2 Antibody [Janelia Fluor® 669]

Application
Recommended Usage

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry-Paraffin

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen and protein A Affinity-purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: TMPRSS2

TMPRSS2, also called Epitheliasin in mice, is a 492 amino acid type II transmembrane serine protease located on human chromosome 21q22.3 that encodes at least 2 isoforms. This glycosylated serine protease (theoretical molecular weight 70kDa) is regulated by androgens and expressed on the plasma membrane of human bronchial epithelial cells, nasal goblet cells, small intestine epithelia, gastrointestinal tract, the stomach, kidneys and pancreas, with the greatest abundance found in the prostate gland. While the physiological function of TMPRSS2 remains unknown, the serine protease domain undergoes autocleavage and the 32 kDa domain is secreted enabling its interaction with the extracellular matrix. Fusions between TMPRSS2 and the ETS transcription factor genes ERG, ETV1, and ETV4 have been reported in prostate cancer with the TMPRSS2 ERG gene fusion resulting in ERG overexpression in 40-80% of these cases and often producing a more aggressive phenotype. Androgen signaling is disrupted in prostate cancers with the TMPRSS2 ERG fusion which contributes to the switch from androgen dependent to androgen independent prostate cancer (1,2).

TMPRSS2 has also been shown to play a critical role in the process of viral entry for coronaviruses and influenza viruses thru proteolytic activation of key viral glycoproteins. One pathway for SARS-CoV-2 infection, which causes the COVID-19 disease, involves binding of the SARS-CoV-2 Spike 'S' glycoprotein to the human ACE2 receptor and cleavage of S by TMPRSS2 at the cell surface to facilitate viral entry. TMPRSS2 mediates viral entry in a similar mechanism for other coronaviruses such as SARS-CoV and MERS. The broad-spectrum serine protease inhibitor, Camostat, is a TMPRSS2 inhibitor demonstrated to protect mice with lethal SARS-CoV infections (3).

References

1. Clark, J., Cooper, C. (2009) ETS gene fusions in prostate cancer. Nat Rev Urol 6, 429-439. PMID: 19657377

2. Duffy, MJ. (2014) Chapter One - PSA in Screening for Prostate Cancer: More Good than Harm or More Harm than Good? Adv Clin Chem. 66:1-23. PMID: 25344984

3. Shen LW, Mao HJ, Wu YL, Tanaka Y, Zhang W. (2017) TMPRSS2: A potential target for treatment of influenza virus and coronavirus infections. Biochimie. 142:1-10

Long Name

Transmembrane protease, serine 2

Alternate Names

Epitheliasin, PP9284, PRSS10

Gene Symbol

TMPRSS2

Additional TMPRSS2 Products

Product Documents for TMPRSS2 Antibody [Janelia Fluor® 669]

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

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Product Specific Notices for TMPRSS2 Antibody [Janelia Fluor® 669]



Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Related Research Areas

Serine Proteases and Regulators

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Protocols

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FAQs

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