Viral Antigen Bank

• 1000+ Viral Antigens
• 90+ Virus Types/Subtypes
• 630+ Flu Antigens
• 170+ SARS-CoV-2 Variants

Recombinant antigens are key reagents in infectious disease research, which are widely used in therapeutic antibody and vaccine development. Sino Biological has independently developed the world's largest recombinant viral antigen collection, ProVir™, which features an exclusive coronavirus catalog, a comprehensive collection of influenza antigens, and many other hard-to-find viral proteins such as Zika, RSV, Ebola, and Cytomegalovirus. The ProVir™ viral antigen bank includes over 1,000 antigens from 90 virus types/subtypes and 350 strains, and has been widely used worldwide in infectious disease research, therapeutic antibody evaluation, immunodiagnostic assay, and vaccine development.

Recombinant SARS-CoV-2 Variants

The B.1.1.7 variants, the P.1 variant, the B.1.351 variant, and the most recent variant B.1.617 first detected in India are of particular concern because of their high prevalence. Sino Biological has developed a panel of recombinant RBD/Spike and nucleocapsid protein variants which can be used to evaluate the efficacy of the antibodies and vaccination.

Lineage RBD S-ECD N
B.1.617.2 40592-V08H90 40589-V08B16 40588-V07E29
B.1.617 40592-V08H88 40589-V08B12 40588-V07E20
B.1.1.7 40592-V08H82 40589-V08B6 40588-V07E8
P.1 40592-V08H86 40589-V08B8 40588-V07E11
B.1.351 40592-V08H85 40589-V08B7 40588-V07E9
400+ SARS-CoV-2 Reagent Tools

Recombinant Antigens for Influenza Vaccine Strains

The ProVir™ collection features 630+ HA, NA, and ME antigens from over 250 strains of influenza viruses, including vaccine strains and the pandemic strains. Sino Biological offers recombinant Flu antigens from all WHO-recommended vaccine strains in recent years.

Strains HA NA NP Year
A/Cambodia/e0826360/2020 (H3N2) 40789-V08H
40784-V08B 40778-V08B 2021-2022
A/Victoria/2570/2019 (H1N1) 40787-V08H
40785-V08B 40774-V08B 2021-2022
A/Wisconsin/588/2019 (H1N1) 40787-V08H
40785-V08B 40774-V08B 2021-2022
B/Phuket/3073/2013 40498-V08B 40502-V07B 40500-V08B 2021-2022
B/Washington/02/2019 40722-V08H 40790-V08B 40755-V08B 2021-2022
630+ Recombinant Flu Antigens
Recombinant Antigens for 2015-2022 Flu Vaccine Strains

Recombinant Antigens for More Infectious Viruses

The ProVir™ collection offers antigens from a variety of viruses associated with many kinds of infecious diseases, ranging from Ebola and Zika to common ones like RSV, HPV, and HIV. It also features rare virus types such as the Rift Valley fever and Vesicular stomatitis Indiana viruses.

Respiratory Disease Viruses

Hand, Foot, and Mouth Disease Viruses

Blood-borne Disease Viruses

Tropical & Vector-borne Diseases

More Disease Viruses

1000+ Recombinant Viral Antigens

By Molecule Initial