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Application: 1. Transient expression of TMPRSS2 in target cells.
2. Generation of stable cell line expressing TMPRSS2 in Puromycin selection.
Description: Human transmembrane serine protease 2 (TMPRSS2) is an enzyme primarily expressed by endothelial cells across the respiratory and digestive tracts. It is involved in viral entry and spread of coronaviruses including SARS-CoV-2, the virus that causes COVID19. TMPRSS2 primes the spike protein by cleaving at the S1/S2 site, leading to the virus fusing to the respiratory epithelia on the cell surface through binding to ACE2. Blocking TMPRSS2 activity could potentially be an effective clinical therapy for COVID-19.
The TMPRSS2 Lentivirus are replication incompetent, HIV-based, VSV-G pseudotyped lentiviral particles that are ready to be transduced into almost all types of mammalian cells, including primary and non-dividing cells. The particles contain an TMPRSS2 gene (NM_005656.4) driven by an EF1a promoter.
Formulation: The lentiviruses were produced from HEK293T cells. Supplied in medium containing 90% DMEM + 10% FBS.
Storage Stability: Lentiviruses are shipped with dry ice. For long term storage, it is recommended to store the virus at -80°C. Avoid repeated freeze-thaw cycles. Titers can drop significantly with each freeze-thaw cycle.
Supplied As: Two vials (500 µl x 2) of lentivirus at a titer ≥5 x 10^6 TU/ml. The titer will vary with each lot; the exact value is provided with each shipment.
Warnings: Biosafety: of the HIV genes (gag, pol, rev) will be expressed in the transduced cells, as they are expressed from packaging plasmids lacking the packing signal. Although the pseudotyped lentiviruses are replication-incompetent, they require the use of a Biosafety Level 2 facility. BPS recommends following all local federal, state, and institutional regulations and using all appropriate safety precautions.
Biosafety Level: BSL-2
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