Xcessbio adopts E. coli, insect cell, and mammalian cell expression system to express prokaryotic and eukaryotic proteins. Recombinant protein has at least 90% purity of 90% with endotoxin level lower than 0.1 EU/µg. With our one-stop service, we design and synthesize gene sequence, improve protein expression conditions, and optimize protein purification and post processing for custom need

Protein expression systems

  • E. coli Expression system — We have several host strains and various expression vectors guarantee the most efficient expression system. We also offer different fusion/affinity tags to increase the protein solubility, expression levels, and ease of purification.
  • Insect Cell Expression — Proteins produced in insect cells are more soluble with post-translational modifications.
  • Mammalian cell Expression — Linkgen lab uses HEK293 or CHO cells to produce proteins in both transient and stable formats.