Recombinant 2019-nCoV Papain-Like Protease - EPT114

Recombinant 2019-nCoV Papain-Like Protease

Size: 50ug

Catalogue Number: EPT114-50

Citations, Manuals and MSDS Available upon request.

Background: Replication of severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) requires proteolytic processing of the replicase polyprotein by two viral cysteine proteases, a chymotrypsin-like protease (3CLpro) and a papain-like protease (PLpro). These proteases are important targets for development of antiviral drugs that would inhibit viral replication and reduce mortality associated with outbreaks of SARS-CoV. PLpro is a cysteine protease located within the non-structural protein 3 (NS3) section of the viral polypeptide. PLPro activity is required to process the viral polyprotein into functional, mature subunits; specifically, PLPro cleaves a site at the amino-terminus of the viral replicase region. In addition to its role in viral protein maturation, PLPro possesses a deubiquitinating and deISGylating activity. In vivo, this protease antagonizes innate immunity by inhibiting IRF3-induced production of type I interferons.

Alternate Names: Papain-like Protease; PLpro; PL-PRO; pp1a; Replicase polyprotein 1a

Description: Recombinant 2019-nCoV Papain-like Protease is produced by our E.coli expression system and the target gene encoding Glu1564-Lys1878 is expressed.

Accession: QHD43415.1

Molecular Weight: 35.8 KDa

Apparent Molecular Weight: 34 KDa, reducing conditions

Storage Condition: Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Purity: Greater than 95% as determined by reducing SDS-PAGE.

Biological Activity: Measured by its ability to convert the fluorogenic peptide substrate, Arg-Leu-Arg-Gly-Gly-AMC (RLRGGAMC) to RLRGG and 7-amino-4-methylcoumarin (AMC). The Specific Activity is 241.7 pmol/min/μg.

Delivery Condition: The product is shipped on dry ice/polar packs. Upon receipt, store it immediately at the temperature listed below.

Storage: Store at ≤-70°C, stable for 6 months after receipt. Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.

Research Use Only