Skip to main content

A Novel icIEF Fractionation & SPR-Based Workflow for Correlating the Charge Structure to the Function of a Bispecific Antibody

Application Notes

This app note demonstrates a novel, streamlined workflow for characterizing biotherapeutic charge variants. Discover the powerful combination of icIEF fractionation on the MauriceFlex™ System and SPR on the Alto™ System (Nicoya Lifesciences).

  • Learn about simplified workflows: See how charge variant fractions are collected on the MauriceFlex System and loaded onto the Alto System for binding analysis.
  • Explore charge-based binding analysis: See how individual charge variants of Mosunetuzumab and a biosimilar interact with CD3 and CD20 ligands.
  • Correlate structural and functional data: Examine how charge variant structures relate to binding properties, with insights confirmed by LC-MS analysis.

icIEF Fractionation and SPR-Based workflow app note thumbnail