[A chimeric monoclonal antibody directed against G250, a cell surface antigen found in the majority of renal cell carcinomas. Following binding, monoclonal antibody G250 (mAb G250) may be internalized by G250 antigen-expressing renal carcinoma cells; mAb G250 may be useful as a carrier for radioisotopes and other antineoplastic therapeutic agents. (NCI05) ( NCI )] (UMLS (NCI) C0540128) =Amino Acid, Peptide, or Protein; Immunologic Factor; Indicator, Reagent, or Diagnostic Aid