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Methods for Identification and Validation of G-Quadruplex Sequences in Legumes
Surabhi Singh1, Tanya Mathur1, Khushboo Gupta1
1Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Uttar Pradesh, India.
Methods in Molecular Biology (Clifton, N.J.)
|January 2, 2020
Summary
This study explores G-quadruplexes, a noncanonical DNA structure, in plant genomes. We present computational and experimental methods to identify and validate G-quadruplex forming sequences (GQSes) in legumes and other plants.
Area of Science:
- Genomics
- Molecular Biology
- Bioinformatics
Background:
- DNA can adopt various secondary structures beyond the canonical double helix.
- Noncanonical DNA structures like G-quadruplexes are emerging as key regulatory elements in cellular processes.
- Understanding G-quadruplexes in plant genomes is crucial for deciphering novel regulatory mechanisms.
Purpose of the Study:
- To outline methods for probing G-quadruplex presence in plant genomes, specifically legumes.
- To describe in silico approaches for identifying potential G-quadruplex forming sequences (GQSes).
- To detail in vitro experimental validation of GQS formation.
Main Methods:
- In silico identification of G-quadruplex forming sequences (GQSes) using computational algorithms.
- In vitro experimental techniques to confirm the formation of G-quadruplex structures.
- Application of these methods to legume and other plant genomic DNA.
Main Results:
- Established computational pipelines for predicting GQSes in plant DNA.
- Validated the formation of predicted G-quadruplexes using experimental assays.
- Demonstrated the feasibility of G-quadruplex analysis in diverse plant genomes.
Conclusions:
- G-quadruplexes represent a significant, yet underexplored, layer of regulation in plant genomes.
- The presented in silico and in vitro methods provide a robust framework for G-quadruplex research in plants.
- Further investigation into plant G-quadruplexes could reveal novel insights into gene regulation and cellular functions.
