Overcoming Effects of Heterogeneous Binding on BLI Analysis.

ABSTRACT: Binding characteristics, such as k _on, k _off, and K_D , are critical for the mechanistic study of biomolecular interactions and drug design. Biolayer interferometry (BLI) has become popular due to its simplicity and sensitivity. Despite its widespread use, BLI data analysis is susceptible to various non-ideal features in sensorgrams. One commonly observed issue is a persistent signal drift after the binding process reaches an expected steady state. The basis of this phenomenon, often referred to as heterogeneous binding, remains poorly understood. In this study, we find that analyte aggregation on the biosensor, particularly induced by ligand-analyte complexes, can contribute to heterogeneous binding. We also find that heterogeneous bind

SUBMITTER: Sherer N 

PROVIDER: S-EPMC12242641 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature