In vitro molecular evolution of antibody genes mimicking receptor revision

Peter Ellmark, O Esteban, Christina Furebring, Ann-Christin Malmborg Hager, Mats Ohlin

Research output: Contribution to journalArticlepeer-review

Abstract

Antibody evolution in vivo proceeds mainly by stepwise improvements, accomplished by single base pair substitutions. Lately, receptor revision, i.e. exchange of large parts of the V gene for another sequence, has been suggested to provide a complementary route for affinity maturation. By employing a receptor revision like evolution process in vitro using combinatorial libraries and phage display selection, we demonstrate here that maturation of a clone may preferentially proceed through exchange of a large gene segment rather than via minor sequence changes. These modifications of a CD40-specific human antibody fragment outline how receptor revision like events may provide an advantage to a particular clonotype put under selective pressure. (C) 2002 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)349-356
JournalMolecular Immunology
Volume39
Issue number5-6
DOIs
Publication statusPublished - 2002

Subject classification (UKÄ)

  • Immunology in the medical area

Free keywords

  • phage display
  • affinity maturation
  • antibody
  • receptor revision
  • somatic hypermutation

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