Immunogen sequence: PSEEQKKQLA QDTGLTILQV NNWFINARRR IVQPMIDQSN RAVSQGTPYN PDGQPMGGFV MDGQQHMGIR APGPMSGMGM NMGMEGQWHY M. Homeobox genes, of which the most well-characterized category is represented by the HOX genes, play a crucial role in normal develop