A probe set is provided which can assay larger amounts of samples in a simpler manner and enables typing of all HLA-DR types currently known to be present in Japanese. The probe set comprises part or all of oligonucleotides having the following sequences 1 to 16 or complementary strands thereof: sequence 1: CGGTTGCTCGGAAAGATGCATC sequence 2: ACACTCCCTCTTTGGCTG sequence 3: GGCCGGGTGGACAACTAC sequence 4: ATGTTTAACCTGCTCCAA sequence 5: CCTGATGAGGAGTACTGGAA sequence 6: AGCTACTGCGCTTCGAC sequence 7: CGTAGAGTACTCCAAGAA sequence 8: CTTATACTTACCCTGCCA sequence 9: AGACAGGCGGGCCCT sequence 10: TCAAACTTATCCTGCTTC sequence 11: AAACTTAACCTCCTCCAA sequence 12: ACTCTACGTCTGAGTGTC sequence 13: ACGGGTGAGTGTTATTTC sequence 14: GACCTCCTGGAAGACAGG sequence 15: ACATCCTGGAAGACGAGC sequence 16: CCCGTAGTTGTGTCTGCA.
