Proteintech is an antibody manufacturer selling directly to scientists and only selling its own products to maintain the highest level of quality control. With over 2/3 of the human genome completed, we have a catalog of over 15,000 antibodies against 13,000 targets covering a large spectrum of research areas. Visit our website www.ptglab.com to view tens of thousands of publications and in-house validation images using our antibodies. Our ELISA kits and proteins are also manufactured and validated in-house. Worldwide locations in North America, Europe, Asia offer next-day delivery.