Our company is a professional CRO service outsourcing company committed to providing customers with high-quality customized protein purification services. Our E. The coli protein purification service provides His-tag or GST-tag options from gene synthesis to labeled protein purification, with purities of 85%, 90% or 95%, and quantities ranging from milligrams to grams. Learn more: <a href="https://www.biosynsis.com/custom-protein-purification-from-e-coli-service.html">custom e. coli protein expression company</a>