Proteins
Recombinant Proteins for assays, drug discovery & more
A diverse range of bioactive recombinant proteins — cytokines, growth factors, CD markers and viral proteins — across multiple species and research areas, validated for reliability and bioactivity.

Browse Proteins by Category
Jump straight to the range you need — every card links directly to its protein category.
All Proteins
Our complete catalogue of bioactive recombinant proteins for functional and structural studies.
Browse →Signalling Molecules
Interleukins, cytokines and chemokines that drive cell communication.
Browse →CD Markers & Antigens
CD proteins for immune cell identification and signalling research.
Browse →Viral Proteins
SARS-CoV-2, HIV and other viral proteins for virology research.
Browse →Species-Specific Proteins
Human, mouse, rat and 20+ other species.
Browse →Custom Protein Services
Need something specific? Tailored protein expression and development.
Browse →Browse by Research Area
Find proteins matched to your field — 15 curated research areas.
Browse by Species
Recombinant proteins for human, mouse, rat and 20+ additional species.
Featured Proteins
A selection of popular bioactive and biotinylated recombinant proteins.








Reliable proteins, expert support
Fast delivery
7–10 business day lead time on our recombinant protein range.
Highly cited
Thousands of citations across leading peer-reviewed journals.
PhD-level support
Our team is trained to PhD level to help you choose and apply the right protein.
Frequently Asked Questions
How do I place an order?
Can’t find Assay Genie on your vendor system?
Which countries are covered by distributors?
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Do you offer custom protein development?
How will I know my order has been received?
Can’t find your protein?
Tell our PhD-level team which target or species you need and we’ll help you find it — or develop it for you.