Isolation of Antigen-Specific Unconventional Bovine Ultra-Long CDR3H Antibodies Using Cattle Immunization in Combination with Yeast Surface Display

Methods Mol Biol. 2023:2681:113-129. doi: 10.1007/978-1-0716-3279-6_8.

Abstract

Cattle are known for their repertoire of antibodies harboring extremely long CDR3H regions that form extensive "knob on stalk" cysteine-rich structures. The compact knob domain allows for the recognition of epitopes potentially not accessible to classical antibodies. To effectively access the potential of bovine-derived antigen-specific ultra-long CDR3 antibodies, a straightforward and effective high-throughput method based on yeast surface display and fluorescence-activated cell sorting is described.

Keywords: Antibody display; Antibody engineering; Bovine ultra-long CDR3H antibodies; Stalk-knob; Yeast surface display.

MeSH terms

  • Animals
  • Antibodies*
  • Antigens
  • Cattle
  • Immunization
  • Saccharomyces cerevisiae* / genetics
  • Vaccination

Substances

  • Antibodies
  • Antigens