A melanoma antigen peptide that is an amino acid sequence of less than 50 amino acids in length, comprising the amino acid motif: - TX2NDECWPX9 (SEQ ID NO: 2) in which X2 is leucine, methionine, valine, isoleucine or glutamine and X9 is alanine, valine or leucine, or - RX2PPKPPLX9 (SEQ ID NO: 3) in which X2 is cysteine, leucine, methionine, valine, isoleucine or glutamine and X9 is alanine, valine or leucine.Un péptido antígeno de melanoma que es una secuencia de aminoácidos de menos de 50 aminoácidos de longitud, que comprende el motivo de aminoácidos: - TX2NDECWPX9 (SEC ID Nº: 2) en el que X2 es leucina, metionina, valina, isoleucina o glutamina y X9 es alanina, valina o leucina, o - RX2PPKPPLX9 (SEC ID Nº: 3) en el que X2 es cisteína, leucina, metionina, valina, isoleucina o glutamina y X9 es alanina, valina o leucina.
