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Updated: Mar 24, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Characterization of a rare Unverricht-Lundborg disease mutation
Ana Joana Duarte1, Diogo Ribeiro1, João Chaves2
1Departamento de Genética Humana, Unidade I&D-P DLS, CSPGF, Instituto Nacional de Saúde Ricardo Jorge (INSA, IP), Porto, Portugal.
Abstract:
Cystatin B (CSTB) gene mutations cause Unverricht-Lundborg disease (ULD), a rare form of myoclonic epilepsy. The previous identification of a Portuguese patient, homozygous for a unique splicing defect (c.66G > A; p.Q22Q), provided awareness regarding the existence of variant forms of ULD. In this work we aimed at the characterization of this mutation at the population level and at the cellular level. The cellular fractionation studies here carried out showed mislocalization of the protein and add to the knowledge on this disease.
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