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Related Experiment Video

Updated: Jan 27, 2026

Ultra-long Read Sequencing for Whole Genomic DNA Analysis

Ultra-long Read Sequencing for Whole Genomic DNA Analysis

Published on: March 15, 2019

Chiral DNA sequences as commutable controls for clinical genomics.

Ira W Deveson^1,2, Bindu Swapna Madala³, James Blackburn^3,4

¹Garvan Institute of Medical Research, Sydney, 2010, NSW, Australia. i.deveson@garvan.org.au.

Nature Communications

|March 24, 2019

Summary

Chiral DNA sequences, mirroring genomic regions, perform equivalently in genetic analyses. Synthetic chiral sequences (sequins) can improve diagnostic accuracy by serving as internal controls in precision medicine.

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Area of Science:

Molecular Biology
Genomics
Bioinformatics

Background:

Chirality describes objects inequivalent to their mirror image.
DNA sequences possess inherent chirality due to their 5'-3' directionality.
Chiral DNA pairs share properties like nucleotide composition and sequence entropy.

Purpose of the Study:

To demonstrate the equivalent performance of chiral DNA sequence pairs in molecular and bioinformatic techniques.
To validate synthetic chiral sequences (sequins) as ideal controls for clinical genomics.
To propose sequins for improving diagnostic accuracy in precision medicine.

Main Methods:

Evaluation of chiral DNA sequence pair performance in PCR amplification and hybridization.
Assessment of performance in whole-genome, target-enriched, and nanopore sequencing.
Analysis of sequence alignment and variant detection capabilities with chiral sequences.

Main Results:

Chiral DNA sequence pairs demonstrated equivalent performance across various genetic analysis techniques.
Synthetic chiral sequences (sequins) showed suitability as controls for clinically relevant genomic regions.
The addition of sequins to tumor samples has the potential to mitigate false positives and negatives.

Conclusions:

Chiral DNA sequences exhibit functional equivalence in key genetic analysis methods.
Synthetic chiral sequences (sequins) are proposed as commutable internal controls for precision medicine.
Sequins can enhance the reliability of mutation detection and improve diagnostic outcomes.