Protein Expression Systems & Vectors

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Protein Expression Systems & Vectors

Protein Expression

Expression vectors and kits for cell-free, prokaryotic, yeast, bacterial, insect, lentiviral, and mammalian expression, as well as fluorescent protein vectors. High yields of high-quality proteins suitable for an array of downstream functional and structural studies can be produced using Expressway™ Cell-Free, Champion™ pET, T7 and pBAD prokaryotic, Pichia, baculovirus, T-REx™, Flp-In™, FreeStyle™, and ViraPower™ lentiviral expression systems, as well as Vivid Colors™ fluorescent protein vectors.

  • Protein Expression Systems Selection Guide

Bacterial Expression

Protein expression in E coli is simple, easy and fast while delivering high yields, making the most popular protein expression technique.


Mammalian Expression

Constitutive and inducible mammalian expression systems are ideal choices to produce proteins with proper folding and post-translational modifications. Discover Invitrogen's wide range of mammalian expression systems for your research.


Yeast Expression

Offering advantages of E. coli (high yields, easy scale-up, etc.) and expression in a eukaryotic host (protein folding, posttranslational modifications) the Pichia system is an ideal choice.


Cell-Free (in vitro) Expression

Cell-Free expression systems produce high yields of active protein at both small and large scales in 1 hour, saving time and effort.


Insect Expression

Baculovirus expression systems are powerful and versatile systems for high-level, recombinant protein expression in insect cells.


Transfection & Selection

Effective reagents for gene delivery to introduce plasmid DNA, siRNA or RNAi duplexes, oligonucleotides, and RNA into eukaryotic cells.


Reporter Assays

You will find vectors, antibodies, reagents and kits for expressing and detecting a variety of reporter genes including glycosidases, Chloramphenicol Acetyltransferase, green fluorescent protein (GFP), β-lactamase,  as well as Lumio™  and TC-FlAsH™ technology.