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Related Experiment Video

Updated: Mar 19, 2026

Identification of Alternative Splicing and Polyadenylation in RNA-seq Data

Identification of Alternative Splicing and Polyadenylation in RNA-seq Data

Published on: June 24, 2021

Characterisation of CDKL5 Transcript Isoforms in Human and Mouse.

Ralph D Hector¹, Owen Dando^2,3,4, Nicoletta Landsberger⁵

¹Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.

|June 18, 2016

Summary

Researchers updated the gene model for Cyclin-Dependent Kinase-Like 5 (CDKL5), identifying new isoforms. This work aids in diagnosing CDKL5 disorders and developing targeted therapies.

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Area of Science:

Genetics
Neurobiology
Molecular Biology

Background:

Mutations in the X-linked Cyclin-Dependent Kinase-Like 5 (CDKL5) gene are linked to severe early-onset epilepsy and developmental delays.
Previous research indicated a complex CDKL5 gene structure, necessitating updated analysis for improved understanding and diagnosis.
Advances in molecular diagnostics and research into CDKL5 disorders highlight the need for a comprehensive gene analysis.

Purpose of the Study:

To bioinformatically and experimentally analyze human and mouse CDKL5 transcript patterns.
To characterize the predominant brain isoform (hCDKL5_1) and identify novel splice and UTR isoforms.
To establish an updated CDKL5 gene model and a standardized nomenclature system for transcripts.

Main Methods:

Bioinformatic analysis of human and mouse CDKL5 transcript patterns.
Experimental characterization of CDKL5 isoforms.
Gene expression profiling across different tissues and developmental stages.

Main Results:

Characterization of the predominant 9.7 kb brain isoform (hCDKL5_1) with an 18-exon structure and a large 3'-UTR.
Identification of novel exonic regions and various novel splice and UTR isoforms.
Development of updated gene models for CDKL5 in humans and mice, along with a standardized transcript nomenclature.
Discovery of tissue- and brain development stage-specific expression patterns for different CDKL5 transcript isoforms.

Conclusions:

The updated CDKL5 gene model and transcript nomenclature provide a crucial foundation for CDKL5 disorder research.
Understanding CDKL5 isoform diversity is essential for accurate diagnosis and investigating the gene's basic biology.
These findings support the rational design of gene-based and molecular therapies for CDKL5-related disorders.