SGN-17/19

**Semantic type:** Amino Acid, Peptide, or Protein|Immunologic Factor|Pharmacologic Substance

**Definition:** A substance composed of a monoclonal antibody-enzyme fusion protein (SGN-17), containing a cloned binding region of the L49 monoclonal antibody and the enzyme beta-lactamase, and an inactive prodrug form of Mephalan (SGN-19) used in Antibody Directed Enzyme Therapy (ADEPT). (NCI)