Protein Express

Protein Express is a Japanese biotechnology company specializing in the development and production of recombinant proteins and peptides. The company is widely recognized for its proprietary Brevibacillus Expression System, which enables high-yield, high-purity production of proteins that are often difficult to express in traditional systems like E. coli. Protein Express provides a range of contract research and manufacturing services, including gene synthesis, protein purification, and the development of diagnostic reagents. Their expertise supports drug discovery, diagnostic development, and academic research globally. The company also offers specialized services in silkworm-based protein expression and cell-free synthesis technologies. By leveraging its unique microbial platforms, Protein Express assists pharmaceutical and biotech partners in overcoming complex protein production challenges.