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Updated: Dec 9, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
A novel REEP1 splicing mutation with broad clinical variability in a family with hereditary spastic paraplegia
Seong-Yong Park1, Jin-Mo Park2, Byeonghyeon Lee1
1Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea.
Abstract:
Hereditary spastic paraplegia (HSP) is a heterogeneous group of genetic disorders characterized by lower-limb spastic paralysis. We report on a family with three generations of autosomal dominant inheritance of HSP caused by a novel heterozygous splice-site mutation (c.303 + 2 T > C) in REEP1 that was confirmed by RFLP analysis. Carriers of the mutation, including one asymptomatic individual, showed a mild HSP phenotype with a wide range of intrafamilial variation. All symptomatic carriers had ankle contractures in addition to other classical clinical symptoms of HSP. Clinicians should suspect REEP1-related HSP in patients who show ankle contractures with other symptoms of HSP and should consider that these patients have asymptomatic carriers within their family.
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