Selection of Antibody Fragments Against Structured DNA by Phage Display

Methods Mol Biol. 2018:1827:197-209. doi: 10.1007/978-1-4939-8648-4_11.

Abstract

In addition to the canonical B-form structure, DNA can adopt alternative conformations including Z DNA, triplex DNA, as well as G4 and i-Motif quadruplex structures. Such structures have been shown to form in cells in a dynamic manner. Monoclonal antibodies against such structures represent key tools to study the biological functions of these structures. Here we provide protocols for the generation of antibody fragments against structured DNA using phage display selections.

Keywords: Antibody fragment; G-quadruplex; Phage display; Secondary structure; Structured DNA; i-Motif.

MeSH terms

  • Antibodies / isolation & purification*
  • Bacteriophages / metabolism
  • Cell Surface Display Techniques / methods*
  • Clone Cells
  • DNA / metabolism*
  • Enzyme-Linked Immunosorbent Assay
  • Oligonucleotides / metabolism

Substances

  • Antibodies
  • Oligonucleotides
  • DNA