Immunogenic peptides with extended oxidoreductase motifs

An immunogenic peptide, said immunogenic peptide comprising:

• a) an oxidoreductase motif,
• b) an MHC class II T-cell epitope of an antigenic protein, and
• c) a linker between a) and b) of between 0 and 7 amino acids,
• wherein said oxidoreductase motif has the following sequence:
• Z(B)n[CST]XmC- or Z(B)nCXm[CST]-;
• wherein Z is any amino acid or non-natural amino acid, excluding basic amino acids comprising R (Arginine), K (Lysine) and H (Histidine), and excluding amino acids D (Aspartate), W (Tryptophane), E (Glutamate), and A (Alanine);
• wherein (B) is any amino acid;
• wherein n is an integer of 0 to 2;
• wherein Cis Cysteine, S is Serine and T is Threonine;
• wherein X is any amino acid;
• wherein m is 2, 0, 1, or 3;
• and
• wherein the hyphen (-) in said oxidoreductase motif indicates the point of attachment of the oxidoreductase motif to the N-terminal end of the linker (c) or the epitope (b), or to the C-terminal end of the linker (c) or the epitope (b).