CUSABIO engaged in the professional customization services of polyclonal antibody, we have many experts who have studied in molecular biology, immunology fields for many years. We have first-class antibody preparation staff, developed antibody production equipment, advanced antibody preparation technologies. Rabbits, guinea pigs, goats and other host are immunized by recombinant protein and natural protein, combined with a variety of purification methods to obtain tens species of thousands of polyclonal antibodies. Our antibodies are all prepared with recombinant protein or native protein, compared with peptide antibody, the affinity and specificity is superior, there're more recognition of antigenic sites, and have much wide range of applications. Antibodies purified by affinity chromatography possess high purity. As to quality control, we prove their sensitivity and discriminating on natural proteins by rigorous ELISA test, verify its specificity by West blot test, our antibody has broader scope of application and it's a powerful tool for scientific research personnel to study their subjects.