Discovery of high affinity anti-ricin antibodies by B cell receptor sequencing and by yeast display of combinatorial V-H:V-L libraries from immunized animals

作者：Wang Bo; Lee Chang Han; Johnson Erik L; Kluwe Christien A; Cunningham Josephine C; Tanno Hidetaka; Crooks Richard M; Georgiou George; Ellington Andrew D

来源：mAbs, 2016, 8(6): 1035-1044.

DOI：10.1080/19420862.2016.1190059

• Antibody repertoire analysis
• next-generation sequencing
• ricin A chain
• yeast surface display

Ricin is a toxin that could potentially be used as a bioweapon. We identified anti-ricin A chain antibodies by sequencing the antibody repertoire from immunized mice and by selecting high affinity antibodies using yeast surface display. These methods led to the isolation of multiple antibodies with high (sub-nanomolar) affinity. Interestingly, the antibodies identified by the 2 independent approaches are from the same clonal lineages, indicating for the first time that yeast surface display can identify native antibodies. The new antibodies represent well-characterized reagents for biodefense diagnostics and therapeutics development.

• 出版日期2016