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Reagent Resource for Studying SARS-CoV-2 Variants

Reagent Resource for Studying SARS-CoV-2 Variants


Three fast-spreading new variants of SARS-CoV-2 virus have emerged in recent months: the U.K. variant B.1.1.7, the Brazil variant P.1, and the South Africa variant B.1.351.

A subset of the mutations identified in the RBD domain of the spike protein occurs in more than one strain, although the three variants are believed to be independently evolved. These convergent mutations, specifically, the N501Y (shared by all three, 40592-V08H82) and E484K (shared between B.1.351 and P.1, 40592-V08H84), are of high interest because they may be the cause of the increased transmissibility.

The mutations in these strains also occur in the nucleocapsid protein, which is commonly used as the biomarker in rapid antigen tests. It’s critical to assess whether the current commercial antigen tests can detect the mutated N proteins with the same sensitivity and specificity as their WT counterpart.

Sino Biological has developed 80+ recombinant RBD/Spike and N protein mutants carrying the mutations of high interest, such as N501Y and E484K identified in three fast-spreading SARS-CoV-2 variants, U.K. B.1.1.7, Brazil P.1, and South Africa B.1.351, emerging in recent months.


About Sino Biological
Sino Biological is an international reagent supplier and contract research service provider. The company specializes in recombinant protein production and antibody development. All of Sino Biological's products are independently developed and produced with a stringent quality management system, and include unique bioreagents addressing areas such as cell therapy, stem cell, and infectious disease research. For example, Sino Biological has a wealth of viral antigens (Provir®) and corresponding antibodies, with one of the world’s Extensive collections. Sino Biological is also a well-recognized, qualified source of recombinant cytokines and high-quality GMP-grade cytokines. In addition, Sino Biological offers contract research production services for the custom development of full length, bioactive proteins and high-affinity antibodies, along with other services. To learn more about Sino Biological visit www.sinobiological.com, follow us on LinkedIn or @SinoInc on Twitter.
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