Doublets were excluded based on forward scatter (FSC) profiles, and dead cells and T cells were excluded by gating 7-aminoactinomycin D–negative (7-AAD−) and CD3− cells, respectively. B-cell subsets were defined as: B1 cells, CD19+CD20+CD27+CD43+CD38lo/int; naive B cells, CD19...
抗体有5种主要的类:IgA,IgD,IgE,IgG和IgM,并且其中数种可以进一步分成亚类(同种型),例如IgG 1 ,IgG 2 ,IgG 3 ,IgG 4 ,IgA 1 和IgA 2 。对应于不同免疫球蛋白类的重链恒定域分别称为α,δ,ε,γ和μ。 本文中术语“Fc域”或“Fc区”用于定义免疫球蛋白重链中至少含有恒定区的一部分的C端区域。