An inversion affecting the GCH1 gene as a novel finding in dopa-responsive dystonia

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Authors

El-Wahsh, Shadi
Fellner, Avi
Hobbs, Matthew
Copty, Joe
Deveson, Ira
Stevanovski, Igor
Stoll, Marion
Zhu, Danqing
Narayanan, Ramesh K.
Grosz, Bianca

Journal Title

Journal ISSN

Volume Title

Publisher

Wiley

Abstract

No abstract available.

Description

SUPPLEMENTARY FILE : SUPPLEMENTARY FIGURE S1. Pedigree of the family. Arrow indicates proband who underwent genetic studies, filled symbol indicates affected, squares represent males and circles represent females. d. MVA = died in motor vehicle accident. Additional family members were not available for testing. SUPPLEMENTARY FIGURE S2. Illumina short read whole genome sequencing data indicating a structural variant (NC_000014.8:g.[55343254_55346605del;55346606_60822142inv;60822143_60823119del]) on chromosome 14 affecting GCH1. Chimaeric (“split”) reads identified by the ClinSV tool are visualized in the IGV genome browser. To ease interpretation the alignments of segments of two representative reads are highlighted (A00488:195:HGJN7DSX2:3:2336:15573:12743 in red, and A00488:195:HGJN7DSX2:3:2160:31503:1219 in blue). Other tracks show the deletions which flank the inversion, and the exonic structure of GCH1 transcript NM_000161.3. (A) The left-hand (centromere proximal) breakpoint region, associated with a 3.4 kb deletion. (B) The right-hand (centromere distal) breakpoint region, associated with a smaller (1.0 kb) deletion. SUPPLEMENTARY FIGURE S3. Oxford Nanopore long read sequencing (LRS) data supporting the proposed structural variant. Chimaeric nanopore sequences are visualized in the IGV genome browser. The sequence alignments confirm the breakpoints indicated by short read sequencing analysis, and extend wide enough for a high level of confidence in read locations. (A, B) Inversion breakpoint regions as in Fig. S2, but in a 50 kb window.

Keywords

Dopa-responsive dystonia (DRD), GCH1, Inversion, Structural variants, Whole genome sequencing (WGS), Optical genome mapping, SDG-03: Good health and well-being, Letter

Sustainable Development Goals

SDG-03:Good heatlh and well-being

Citation

El-Wahsh, S., Fellner, A., Hobbs, M. et al. 2024, 'An inversion affecting the GCH1 gene as a novel finding in dopa-responsive dystonia', Movement Disorders Clinical Practice, vol. 11, no. 5, pp. 582-585, doi : 10.1002/mdc3.14023.