Rolinsatamab is a IgG1κ type chimeric antibody targeting to PRLR (prolactin receptor). Rolinsatamab can be conjugated with pyrrolobenzodiazepine (PDB) dimer SGD-1882 (HY-101127) via a cleavable maleimidocaproyl type linker, to form an antibody-drug conjugate, Rolinsatamab talirine. One Rolinsatamab talirine has an average of 2 site-specific drug attachment engineered cysteines (S239C). The linker equips the valine-alanine dipeptide, as cathepsine B cleavage site. on an average of 2 site-specific drug attachment engineered cysteines (S239C)[1].
