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Gel-seq: A Method for Simultaneous Sequencing Library Preparation of DNA and RNA Using Hydrogel Matrices

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LUEGO: a cost and time saving gel shift procedure.

Nicolas Jullien¹, Jean-Paul Herman

¹Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille, Centre National de la Recherche Scientifique, and Faculté de Médecine Nord, Aix-Marseille Université, Marseille, France. nicolas.jullien@univmed.fr

|October 13, 2011

Summary

Researchers created a novel method for DNA probe preparation for gel shift assays. This new technique, using a labeled universal electrophoretic gel shift oligonucleotide (LUEGO), offers advantages in time, effort, and cost.

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An Optimized Protocol for Electrophoretic Mobility Shift Assay Using Infrared Fluorescent Dye-labeled Oligonucleotides

An Optimized Protocol for Electrophoretic Mobility Shift Assay Using Infrared Fluorescent Dye-labeled Oligonucleotides

Published on: November 29, 2016

Area of Science:

Molecular Biology
Biochemistry
Genetics

Background:

Electrophoretic mobility gel shift assays (EMSA) are crucial for studying protein-DNA interactions.
Traditional DNA probe preparation for EMSA can be time-consuming and costly.
Developing efficient and reliable methods for probe synthesis is essential for molecular biology research.

Purpose of the Study:

To introduce a new, cost-effective, and time-efficient method for preparing DNA probes for EMSA.
To demonstrate the efficacy and reliability of the novel probe preparation technique.

Main Methods:

A novel approach involving two complementary oligonucleotides and a third, short labeled universal oligonucleotide (LUEGO).
One oligonucleotide contains the target transcription factor binding sequence and a universal tail.
The universal tail anneals to the labeled LUEGO, enabling versatile probe labeling.

Main Results:

The developed method allows for rapid labeling of diverse DNA probes.
Probes prepared using the LUEGO method exhibit comparable effectiveness and reliability to conventionally prepared probes.
Significant reduction in time, effort, and cost associated with probe preparation was observed.

Conclusions:

The LUEGO method provides an advantageous alternative for DNA probe preparation in EMSA.
This technique simplifies and optimizes the workflow for studying transcription factor binding.
The findings support the adoption of LUEGO for routine molecular biology applications requiring labeled DNA probes.