Anti-TAG-72 Monoclonal Antibody scFV CC-49/218

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

**Definition:** An immunoglobulin derived from the single-chain antigen-binding domain (sFv) of the monoclonal antibody CC-49 with potential antineoplastic activity. The parent monoclonal antibody CC-49 binds to the tumor-associated glycoprotein TAG-72 with high affinity, recognizing many tumor cell types that express TAG-72. Because of its single-chain structure, CC-49/218 sFv may exhibit a longer half-life than the parent monoclonal antibody CC-49; 218 represents the linker sequence that helps reduce aggregation and proteolysis of this agent. (NCI04)