We offer a collection of high-quality recombinant proteins, including cytokines, growth factors, cell surface ligands, receptors, and transporters as well as enzymes for your post-genomic functional studies.  We have developed unique mammalian cell expression systems based on our high-throughput gene cloning & expression technologies, allowing significantly improved success rates and production yields. All our recombinant protein products are expressed in mammalian cells under animal component-free condition, purified to the highest homogeneity possible, and formulated into the carrier-free buffer compatible with downstream in vitro and in vivo bioassays.

You can browse our recombinant protein products by applying different filters listed on the right, such as "Molecule Class", "Gene Family", and "Pathway/Disease" or featured products below.  Alternatively you can browse the lists or search to retrieve your protein of interest by its encoding gene symbol or synonym.  If you can not find your protein of interest or need a different quantity/format/variant, we can express and purify it as a custom service project.  We will clone and express your gene with custom choice of fusion or tag.  You can simply provide us with the DNA/amino acid sequences, we will deliver to you the ready-to-use recombinant proteins in a short turnaround time. To learn more and request a quote, please go to our "Protein Services". 

Featured Products by Gene/Protein Family, Function or Pathway:

• Immune Checkpoints & Costimulatory Pathways
• B7 Family Ligands & CD28 Family Receptors
• TGFBR Serine/Threonine Kinase Receptor Family