Single-Cell B-Cell Sequencing to Generate Natively Paired scFab Yeast Surface Display Libraries

Methods Mol Biol. 2023:2681:175-212. doi: 10.1007/978-1-0716-3279-6_11.

Abstract

The immune cell profiling capabilities of single-cell RNA sequencing (scRNA-seq) are powerful tools that can be applied to the design of theranostic monoclonal antibodies (mAbs). Using scRNA-seq to determine natively paired B-cell receptor (BCR) sequences of immunized mice as a starting point for design, this method outlines a simplified workflow to express single-chain antibody fragments (scFabs) on the surface of yeast for high-throughput characterization and further refinement with directed evolution experiments. While not extensively detailed in this chapter, this method easily accommodates the implementation of a growing body of in silico tools that improve affinity and stability among a range of other developability criteria (e.g., solubility and immunogenicity).

Keywords: Antibodies; B-cell receptors; Mouse immunization; Single-cell sequencing; Yeast surface display (YSD); scFab library generation.

MeSH terms

  • Animals
  • Antibodies, Monoclonal* / metabolism
  • B-Lymphocytes
  • Mice
  • Receptors, Antigen, B-Cell / genetics
  • Receptors, Antigen, B-Cell / metabolism
  • Saccharomyces cerevisiae* / metabolism
  • Single-Cell Analysis

Substances

  • Antibodies, Monoclonal
  • Receptors, Antigen, B-Cell