ProtTech Inc. is providing world-class services and products for Antibody and Protein Expression in CHO, Protein Expression in E.coli, Therapeutic Antibody Discovery & Development, Neutralized Antibody Drug Discovery & Development, Therapeutic Fusion Proteins & Nanobodies Development, HLA Peptidomics, NeoAntigen, analyzing proteins, biologics, NeoAntigen discovery. It also provides protein products such as PD-L1, PD-1,Biotin Ligase, BirA, SARS-CoV-2 nucleocapsid protein, TMPRSS2 mAb AL20, Sphing