Proteins

Recombinant Proteins

Proteins

Expressed in bacterial, mammalian, insect and yeast host systems

Proteins are macromolecules built from long chains of amino acid residues. Our cells need them to function, and regulation at the cell, tissue and organ level is not possible without them.

How it works

Recombinant Expression

Our recombinant proteins are produced by inserting the coding sequence for a target protein into an expression vector, then expressing it in a host system such as E. coli, HEK293, CHO or insect cells. Purification and detection tags, including His, Fc, Avi and GST, are added to support downstream use.

Category benefits

Why use our recombinant proteins?

✓ A range of expression systems
Our range is produced across bacterial (E. coli), mammalian (HEK293, CHO), insect and yeast host systems, so you can match the format to your assay.
✓ A choice of purification and detection tags
Proteins in our catalogue are available with His, Fc, Avi, GST and biotin tags, supporting purification, capture and direct detection workflows.
✓ Quality-checked purity
Product datasheets include SDS-PAGE data confirming purity for each batch, so you know what you are working with before it arrives.
Choose by category

Recombinant Protein Categories

Recombinant proteins in our range are organised by biological role and application, from soluble cytokines used in cell culture to membrane receptor ectodomains used in binding and capture assays. Choose a category below to browse that part of the range.

Secreted Signalling Cytokines & Growth Factors Interleukins, growth factors and receptor subunits produced for cell culture, differentiation and functional bioassay use.
Browse Cytokines →
Membrane Receptors Cell Surface Proteins Extracellular domains and Fc fusions of membrane receptors, including checkpoint and costimulatory targets, for binding and cell-based assay work.
Browse Cell Surface Proteins →
Direct Detection Labelled Proteins Proteins conjugated to biotin, Fc or site-specific Avi-tags for direct detection in ELISA, BLI/SPR and flow-based assays.
Browse Labelled Proteins →
Serology & Binding Viral Antigens Defined viral protein sequences for serology, binding assays and cross-reactivity studies across a range of strains and variants.
Browse Viral Antigens →
Where they're used

Typical applications

✓ ELISA
Recombinant proteins are used as coating antigens, standards and capture reagents in ELISA assay development.
✓ Western blot and SDS-PAGE
Proteins serve as loading controls, positive controls and molecular weight references across western blot and SDS-PAGE work.
✓ Immunogen for antibody generation
Defined recombinant sequences are used as immunogens to raise or validate target-specific antibodies.
✓ Cell culture and functional bioassays
Cytokines and growth factors from our range support cell culture, differentiation and functional bioassay work.

Need help choosing a protein?

Contact our technical support team for help selecting the right protein, host system or tag for your assay. Each product page includes a downloadable datasheet and SDS, with dispatch on overnight priority shipping with gel ice packs.

Looking for more proteins?

Browse our full range of recombinant proteins, including cytokines, cell surface proteins, labelled proteins and viral antigens.

 View protein research insights

For Research Use Only. Not for use in diagnostic procedures.

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