Proteins, Enzymes, and Peptides for Commercial Use

For a wide variety of applications, Life Technologies carries a vast array of purified molecular biology enzymes, kinases, receptors, transcription factors, growth factors, reporters, and other cellular proteins. Many of these proteins are available for resale as-is, in an added-value kit, or for your use in a commercial service. We can also custom-design, develop, and manufacture recombinant proteins and peptides to meet your needs. Please contact us at to explore opportunities for working together.

Available purified proteins and peptides include:

  • BSA & BGG reagents
  • Complement
  • Drug-metabolizing enzymes
  • Extracellular matrix proteins
  • Growth factors, chemokines, and cytokines
  • Kinases
  • Lipoproteins
  • Molecular biology enzymes
  • Nuclear receptor proteins
  • Other purified proteins and enzymes
  • Peptides
  • Proteases
  • Protein and enzyme inhibitors

Our recombinant proteins are tested for:

  • Biological activity using relevant bioassays
  • Freeze/thaw stability under normal cell culture conditions
  • Structural homogeneity
  • Endotoxin levels via the LAL method

GIBCO® Proteins, Peptides, and Inhibitors for Cell Culture and Intracellular Studies
Our recombinant proteins exhibit:

  • High biological activity—more results with less protein
  • High purity—no interference from other proteins or contaminants
  • Freeze/thaw stability—reproducible data from one experiment to the next
  • Proven compatibility with our media systems—one less variable for you to worry about

We offer a wide selection of recombinant proteins for use in combination with human, mouse, rat, and swine cultured cell models:

  • Growth factors, cytokines, chemokines, and kinases 
  • Peptides and inhibitors
  • Learn More about growth factors

ABfinity™ Recombinant Monoclonal Antibody Technology

High-quality antibodies for today and beyond
Specific—undergo rigorous validation
High performance—proven consistency from lot to lot
Efficient—detect low-level targets with less sample

ABfinity™ antibodies, produced by proprietary Invitrogen™ technology, are highly specific and high-quality monoclonal antibodies, unmatched for producing consistent results. ABfinity™ antibodies are recombinant antibodies developed by immunizing animals, screening for functionality, and cloning the immunogen-specific antibody genes into high-level expression vectors. The antibodies are produced on a large scale by expressing them in mammalian cells and purifying them with protein A. These recombinant antibodies appear just like their counterparts isolated from serum or produced by hybridomas. Intact IgG appears on a non-reducing gel as ~150 kDa band and upon reduction generates ~25 kDa light chain and ~50 kDa heavy chain bands.

Protein Expression Services
We routinely manufacture proteins for our customers, and are glad to consider providing custom protein expression services for you.

PD-Direct® BioProcess Services

If your interest lies in cell line development for therapeutic purposes, our PD-Direct® team can support projects across a range of biological platforms including viruses, antibodies, recombinant proteins, and stem cell therapies.

Long-term success can only be achieved through meeting today’s challenges. We combine broad scientific expertise and in-depth regulatory knowledge to invest in your future through customized services today.

To learn more about how we can help supply your needs as a commercial-use customer, please contact us at