V-region sequences of FL receptors and B1-8 and Hy10 variants containing N-glycosylation sites. (A) V-region sequences of FL receptors are shown. The distinct framework region and CDR regions are indicated and positions of the acquired N-glycosylation sites are highlighted with arrowheads. (B) V-region sequences of B1-8 and Hy10 receptor variants containing FL-characteristic glycosylation sequons. N-glycosylation sites are indicated with arrowheads. All peptide sequence numbering without leader sequence. Figure generated using Geneious version 6 created by Biomatters. FR, framework region; VH, variable heavy, VL, variable light.