SARS-CoV-2 Nucleocapsid Protein Titer Assay Kit

背景（Background）

Nucleocapsid (N) protein is the most abundant protein found in coronavirus. CoV N protein is a highly immunogenic phosphoprotein important for viral genome replication and modulation of cell signaling pathways. It was first identified by a research team while they were screening for ADP-ribosylated proteins during coronavirus (CoV) infection (Grunewald M. E., et al. 2017, Virology; 517: 62-68). The array of diverse functional activities accommodated in N protein makes it more than a structural protein but also an interesting target in the development of antiviral therapeutics. Because of the conservation of N protein sequence and its strong immunogenicity, N protein of coronavirus is chosen as a diagnostic tool.

应用说明（Application）

This kit is developed for detecting the SARS-CoV-2 Nucleocapsid Protein in cell supernatant or SARS-CoV-2 virus in vitro.

It is for research use only.

重构方法（Reconstitution）

Please see Certificate of Analysis for details of reconstitution instruction and specific concentration.

存储 & 运输（Storage & Shipping）

1. Unopened kit should be stored at 2℃-8℃ upon receiving.

2. Find the expiration date on the outside packaging and do not use reagents past their expiration date.

3. The opened kit should be stored per components table. The shelf life is 30 days from the date of opening.

Shipping Statement

原理（Assay Principles）

This assay kit employs a standard sandwich-ELISA format, providing a rapid detection of SARS-CoV-2 Nucleocapsid Protein. The kit consists of Anti-SARS-CoV-2 Nucleocapsid Antibody, an SARS-CoV-2 Nucleocapsid Protein as Control, an biotin-Anti-SARS-CoV-2 Nucleocapsid Antibody and HRP-Streptavidin.

Your experiment will include 5 simple steps:

a) Add your sample to the plate, take the SARS-CoV-2 Nucleocapsid protein as Control sample. The samples and Control sample are diluted by Lysis Buffer.

b) Add a diluted Secondary antibody biotin-anti-SARS-CoV-2 Nucleocapsid Antibody to the plate. The Secondary antody is diluted by Dilution Buffer.

c) Add a diluted Streptavidin-HRP to the plate.

d) Wash the plate and add TMB or other colorimetric HRP substrate.

e) Stop the substrate reaction by add diluted acid. Absorbance (OD) is calculate as the absorbance at 450 nm minus the absorbance at 630 nm to remove background prior to statistical analysis. The OD Value reflects the amount of antibody bound.