Recombinant Severe acute respiratory syndrome coronavirus 2 Spike glycoprotein (S) (E484K) , partial (Active)

Product Specifications

CAS Number

9000-83-3

Gene Name

UniProt

P0DTC2

Expression Region

319-541aa(E484K)

Organism

Severe acute respiratory syndrome coronavirus 2 (2019-nCoV) (SARS-CoV-2)

Target Sequence

RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVKGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNF

Tag

C-terminal mFc-tagged

Source

Mammalian cell

Field of Research

Others

Assay Type

Active Protein & In Stock Protein & Coronavirus Protein

Endotoxin

Less than 1.0 EU/ug as determined by LAL method.

Purity

Greater than 90% as determined by SDS-PAGE.

Activity

Yes

Bioactivity

①Measured by its binding ability in a functional ELISA. Immobilized SARS-CoV-2-S1-RBD (E484K) at 2 μg/ml can bind human ACE2 (CSB-MP866317HU-B), the EC50 is 6.597-8.187 ng/ml. ②Measured by its binding ability in a functional ELISA. Immobilized SARS-CoV-2-S1-RBD (E484K) at 2 μg/ml can bind Biotin-S Antibody (CSB-RA33245D1GMY), the EC50 is 21.54-26.77 ng/ml.

Length

Partial

Form

Lyophilized powder

Buffer

Lyophilized from a 0.2 μm filtered PBS, 6% Trehalose, pH 7.4

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Molecular Weight

54.4 kDa

Storage Conditions

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.