title: BCR library of IgA patient 17
design: In this study, we applied immune repertoire sequencing technology to systematically analyze the complementary determining region 3 (CDR3) sequences of all the B cell receptors (BCR), evaluated the antibody CDR3 length distribution, diversity, percentage of each subtype, and overlapping of CDR3 sequences among different isotypes, particularly for IgA, IgG and IgM