PSA:154-163(155L) Peptide Vaccine

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

**Definition:** A cancer vaccine comprised of a synthetic peptide with an amino acid sequence corresponding to positions 154-163 of the amino acid sequence for prostate-specific antigen (PSA) with a leucine substitution at position 155. Upon administration, PSA:154-163 (155L) peptide vaccine may elicit a cytotoxic T-cell response against tumor cells that express PSA. (NCI05)

**Synonyms:** - PSA PEP VAC - PSA-3A - PSA:154-163(155L) Peptide