TY  - JOUR
A1  - Zaum, Ann‐Kathrin
A1  - Nanda, Indrajit
A1  - Kress, Wolfram
A1  - Rost, Simone
T1  - Detection of pericentric inversion with breakpoint in DMD by whole genome sequencing
JF  - Molecular Genetics & Genomic Medicine
N2  - Background
Dystrophinopathies caused by variants in the DMD gene are a well‐studied muscle disease. The most common type of variant in DMD are large deletions. Very rarely reported forms of variants are chromosomal translocations, inversions and deep intronic variants (DIVs) because they are not detectable by standard diagnostic techniques (sequencing of coding sequence, copy number variant detection). This might be the reason that some clinically and histologically proven dystrophinopathy cases remain unsolved.

Methods
We used whole genome sequencing (WGS) to screen the entire DMD gene for variants in one of two brothers suffering from typical muscular dystrophy with strongly elevated creatine kinase levels.

Results
Although a pathogenic DIV could not be detected, we were able to identify a pericentric inversion with breakpoints in DMD intron 44 and Xq13.3, which could be confirmed by Sanger sequencing in the index as well as in his brother and mother. As this variation affects a major part of DMD it is most likely disease causing.

Conclusion
Our findings elucidate that WGS is capable of detecting large structural rearrangements and might be suitable for the genetic diagnostics of dystrophinopathies in the future. In particular, inversions might be a more frequent cause for dystrophinopathies as anticipated and should be considered in genetically unsolved dystrophinopathy cases.
KW  - chromosome inversion
KW  - Duchenne muscular dystrophy
KW  - dystrophin
KW  - genetic diagnostics
KW  - whole genome sequencing
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-293940
VL  - 10
IS  - 10
ER  - 
TY  - JOUR
A1  - Pluta, Natalie
A1  - Hoffjan, Sabine
A1  - Zimmer, Frederic
A1  - Köhler, Cornelia
A1  - Lücke, Thomas
A1  - Mohr, Jennifer
A1  - Vorgerd, Matthias
A1  - Nguyen, Hoa Huu Phuc
A1  - Atlan, David
A1  - Wolf, Beat
A1  - Zaum, Ann-Kathrin
A1  - Rost, Simone
T1  - Homozygous inversion on chromosome 13 involving SGCG detected by short read whole genome sequencing in a patient suffering from limb-girdle muscular dystrophy
JF  - Genes
N2  - New techniques in molecular genetic diagnostics now allow for accurate diagnosis in a large proportion of patients with muscular diseases. Nevertheless, many patients remain unsolved, although the clinical history and/or the muscle biopsy give a clear indication of the involved genes. In many cases, there is a strong suspicion that the cause must lie in unexplored gene areas, such as deep-intronic or other non-coding regions. In order to find these changes, next-generation sequencing (NGS) methods are constantly evolving, making it possible to sequence entire genomes to reveal these previously uninvestigated regions. Here, we present a young woman who was strongly suspected of having a so far genetically unsolved sarcoglycanopathy based on her clinical history and muscle biopsy. Using short read whole genome sequencing (WGS), a homozygous inversion on chromosome 13 involving SGCG and LINC00621 was detected. The breakpoint in intron 2 of SGCG led to the absence of γ-sarcoglycan, resulting in the manifestation of autosomal recessive limb-girdle muscular dystrophy 5 (LGMDR5) in the young woman.
KW  - inversion
KW  - sarcoglycanopathy
KW  - whole genome sequencing (WGS)
KW  - next generation sequencing (NGS)
KW  - LGMDR5
KW  - muscle disease
KW  - genetic diagnostics
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-288122
SN  - 2073-4425
VL  - 13
IS  - 10
ER  -