Proteins
A diverse range of recombinant proteins — cytokines, growth factors, CD markers and viral proteins — across 25+ species, with bioactivity and purity data on every datasheet.
Bioactivity (ED50) and SDS-PAGE purity for Recombinant Human Mature TGF-β1 — representative of the QC on every protein.
Interleukins, cytokines and chemokines that drive cell communication.
Browse →CD proteins for immune cell identification and signalling research.
Browse →SARS-CoV-2, HIV and other viral proteins for virology research.
Browse →Human, mouse, rat and 20+ other species, matched to your model.
Browse →By research area
Our largest range — cytokines, growth factors, CD markers and more.
View range →Species-matched proteins for in vivo and cell-based mouse models.
View range →Recombinant rat proteins for physiology and disease research.
View range →Every species we express, from bovine and canine to fish.
View range →More species
Proteins are purified to ≥95% purity as standard, confirmed by SDS-PAGE. The purity and QC data for each lot are on the product datasheet.
Many proteins are tested for biological activity, with an ED50 or specific activity reported on the datasheet — as in the TGF-β1 example above. Proteins without an activity statement are suited to uses such as ELISA standards, antibody production and binding assays.
His-tagged proteins suit purification and detection; Fc-tagged proteins are dimeric and useful for binding and cell-based work; biotinylated (Avi-tagged) proteins attach in a defined orientation to streptavidin surfaces for ELISA, SPR, BLI and flow cytometry. The tag and expression host are listed on each product page.
Human, mouse and rat make up the largest ranges, with proteins from 20+ further species including bovine, canine, porcine, non-human primate, viral and microbial sources.
Typical lead time is 7–10 business days.
Yes. If you don't see the protein you need, or need larger quantities, our team offers tailored expression and development — get in touch with your target and requirements.