Recombinant fragment corresponding to Human HLA-DQA1 aa 24-213. Sequence: EDIVADHVASYGVNLYQSYGPSGQYTHEFDGDEQFYVDLGRKETVWCLPV LRQFRFDPQFALTNIAVLKHNLNSLIKRSNSTAATNEVPEVTVFSKSPVT LGQPNILICLVDNIFPPVVNITWLSNGHSVTEGVSETSFLSKSDHSFFKI SYLTLLPSAEESYDCKVEHWGLDKPLLK