[creative-diagnostics] Recombinant COVID-19 Spike S1 [human Fc]

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Recombinant COVID-19 Spike S1 [human Fc] (DAGC092)

Recombinant COVID-19 Spike Protein S1 from Human cells [human Fc]

Product Overview

A DNA sequence encoding the COVID-19 spike protein S1 was expressed with the Fc region of human IgG1 at the C-terminus.

Target

COVID-19 Spike Protein S1

Nature

Recombinant

Predicted N terminal

Val

Tag/Conjugate

Fc

Molecular Weight

The recombinant COVID-19 spike protein S1 consists of 908 amino acids and predicts a molecular mass of 101.7 kDa.

Endotoxin

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

Alternative Names

COVID-19; coronavirus; COVID-19 S1; COVID-19 spike protein

Procedure

None

Purity

> 90 % as determined by SDS-PAGE.

Format

Lyophilized

Size

100 µg

Buffer

Lyophilized from sterile. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.

Preservative

None

Storage

Store it under sterile conditions at -20°C to -80°C. 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.

Ship

Shipped at ambient temperature.

Introduction

The spike (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell: they are essential for both host specificity and viral infectivity. The term 'peplomer' is typically used to refer to a grouping of heterologous proteins on the virus surface that function together. The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process. Most notable is severe acute respiratory syndrome (SARS). The severe acute respiratory syndrome-coronavirus (SARS-CoV) spike (S) glycoprotein alone can mediate the membrane fusion required for virus entry and cell fusion. It is also a major immunogen and a target for entry inhibitors. The SARS-CoV spike (S) protein is composed of two subunits; the S1 subunit contains a receptor-binding domain that engages with the host cell receptor angiotensin-converting enzyme 2 and the S2 subunit mediates fusion between the viral and host cell membranes. The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity, during infection with SARS-CoV.

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