Binding-Induced Molecular Amplifier as a Universal Detection Platform for Biomolecules and Biomolecular Interaction

Area of Science:

• Biochemistry
• Molecular Biology
• Biotechnology

Background:

• Detecting multiple biomolecule classes and interactions is crucial for diagnostics and biological research.
• Generalizing detection methods across diverse targets is challenging due to variations in recognition, signaling, and instrumentation.

Purpose of the Study:

• To develop a universal strategy for translating various biomolecules and interactions into a unified DNA barcode.
• To create a sensitive and amplifiable detection system for multiple target classes.

Main Methods:

• Introduced a binding-induced molecular amplifier (BIMA) strategy based on a three-dimensional DNA-walking mechanism.
• Utilized toehold-mediated strand displacement beacons for signal transduction.
• Demonstrated translation of diverse targets into predesigned DNA barcodes in homogeneous solutions.

Main Results:

• Successfully translated various biomolecules (nucleic acids, proteins) and protein-protein interactions into a unified DNA barcode.
• Achieved signal amplification, generating multiple barcode molecules per target molecule.
• Expanded the utility of strand displacement beacons for multiplexed biomolecular detection.

Conclusions:

• The BIMA strategy offers a versatile platform for homogeneous detection of diverse biomolecular targets.
• This approach enhances sensitivity and enables multiplexed analysis, advancing diagnostics and biological discovery.