Related Experiment Video
Updated: May 22, 2025

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
Published on: June 23, 2012
Long read sequencing enhances pathogenic and novel variation discovery in patients with rare diseases
Shruti Sinha1, Fatma Rabea2, Sathishkumar Ramaswamy3
1Dubai Health Genomic Medicine Center, Dubai Health, Dubai, UAE. ajch_ssinha@dubaihealth.ae.
Abstract:
With ongoing improvements in the detection of complex genomic and epigenomic variations, long-read sequencing (LRS) technologies could serve as a unified platform for clinical genetic testing, particularly in rare disease settings, where nearly half of patients remain undiagnosed using existing technologies. Here, we report a simplified funnel-down filtration strategy aimed at enhancing the identification of small and large deleterious variants as well as abnormal episignature disease profiles from whole-genome LRS data. This approach detected all pathogenic single nucleotide, structural, and methylation variants in a positive control set (N = 76) including an independent sample set with known methylation profiles (N = 57). When applied to patients who previously had negative short-read testing (N = 51), additional diagnoses were uncovered in 10% of cases, including a methylation profile at the spinal muscular atrophy locus utilized for diagnosing this life-threatening, yet treatable, condition. Our study illustrates the utility of LRS in clinical genetic testing and the discovery of novel disease variation.
More Related Videos
Related Concept Videos
Next-generation Sequencing
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Sanger Sequencing
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...
RNA-seq
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Maxam-Gilbert Sequencing
Challenges of the Maxam-Gilbert Method
The...
Single Nucleotide Polymorphisms-SNPs

