SARS-CoV-2 (2019-nCoV) NSP3-His Recombinant Protein

Product Specifications

Overview

A DNA sequence encoding the SARS-CoV-2 (2019-nCoV) NSP3 (YP_009725299.1) (Ile205-Lys379) was expressed with a polyhistidine tag at the N-terminus.

Expression System

E. coli

Tag

N-His

Endotoxin

< 1.0 EU per μg protein as determined by the LAL method.

Purity

> 95 % as determined by SDS-PAGE.

Activity

At Leading Biology, the biological activity of a recombinant protein is routinely measured using a bioassay, e.g. chemotaxis or cell proliferation assay, enzyme assay, or a functional ELISA. When a recombinant protein is an enzyme, specific activity is derived from an enzymatic assay. Each enzyme is tested for potency by cleavage of a substrate. We are in the process of updating the biological activity data. If you have any questions regarding this update, please feel free to contact our technical support team.

Form

Lyophilized

Buffer

Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 7.4 Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

Function

2019-nCoV, HCoV, Viral Proteins

Molecular Weight

The recombinant SARS-CoV-2 (2019-nCoV) NSP3 comprises 182 amino acids and has a calculated molecular mass of 19.87 kDa.

Storage Conditions

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. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.