SARS-CoV (strain WH20) Plpro / papain-like protease (His Tag)

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SARS-CoV (strain WH20) Plpro / papain-like protease (His Tag): Product Information

Purity
> 90 % as determined by SDS-PAGE.
Endotoxin
Please contact us for more information.
Activity
Testing in progress
Protein Construction
A DNA sequence encoding the SARS-CoV (strain WH20) papain-like protease (PLpro) (AAX16193.1) (Glu1541-Tyr1859) was expressed with a polyhistidine tag at the C-terminus.
Accession#
Expressed Host
E. coli
Species
SARS
Predicted N Terminal
Glu 1541
Molecule Mass
The recombinant SARS-CoV (strain WH20) papain-like protease (PLpro) consists of 325 amino acids and predicts a molecular mass of 36.65 kDa.
Formulation
Lyophilized from sterile 50 mM Tris, 0.1 % Tween, pH 9.0.
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

SARS-CoV (strain WH20) Plpro / papain-like protease (His Tag): Images

Plpro/papain-like protease Background Information

The coronaviral proteases, papain-like protease (PLpro) and 3C-like protease (3CLpro), are attractive antiviral drug targets because they are essential for coronaviral replication. PLpro has the additional function of stripping ubiquitin and ISG15 from host-cell proteins to aid coronaviruses in their evasion of the host innate immune responses. Targeting PLpro with antiviral drugs may have an advantage in not only inhibiting viral replication but also inhibiting the dysregulation of signaling cascades in infected cells that may lead to cell death in surrounding, uninfected cells.
References
    Yahira M. Báez-Santos.The SARS-coronavirus papain-like protease: Structure, function and inhibition by designed antiviral compounds. Antiviral Research.2015
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