[EN] NOVEL METHIONINE CONTAINING ANTIBODIES FOR CONJUGATION OF AGENTS<br/>[FR] NOUVEAUX ANTICORPS CONTENANT DE LA MÉTHIONINE POUR LA CONJUGAISON D'AGENTS
申请人:UNIV CALIFORNIA
公开号:WO2020140123A1
公开(公告)日:2020-07-02
Provided herein are novel antibody-agent conjugates formed by the introduction of methionine residues to antibody scaffold light or heavy chains at select positions, followed by conjugation of the agent to the methionine, for example, by oxaziridine chemistries. Methionine substitutions at the targeted positions enable highly efficient functionalization to form very stable conjugates, including conjugates suitable for in vivo use. The positions were identified for the trastuzumab and other related scaffolds which can be engineered for affinity to any target antigen. The conjugates include ADCs and detections agents. Also disclosed are novel oxaziridine reagents for conjugation to methionines in proteins.