LGMD2E with a novel nonsense variant in SGCB gene: a case of LGMD2E with a novel variant
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Sarcoglycanopathies are a rare group of autosomal recessive limb-girdle muscular dystrophies (LGMDs) caused by genetic variants in α-, β-, γ-, or δ-sarcoglycan that maintain membrane integrity and contribute to molecular signal processing. High-throughput nucleotide sequencing was performed in patients with slowly progressive proximal muscle weakness from early childhood with respiratory involvement, which detected a novel homozygous nonsense variant (c.601C>T;p.Gln201Ter) in SGCB. This report informs about the clinical characteristics of LGMD2E (type-2E LGMD) in Korea and provides genetic confirmation of the disease.
Abstract
Sarcoglycanopathies are a rare group of autosomal recessive limb-girdle muscular dystrophies (LGMDs) caused by genetic variants in α-, β-, γ-, or δ-sarcoglycan that maintain membrane integrity and contribute to molecular signal processing. High-throughput nucleotide sequencing was performed in patients with slowly progressive proximal muscle weakness from early childhood with respiratory involvement, which detected a novel homozygous nonsense variant (c.601C>T;p.Gln201Ter) in SGCB. This report informs about the clinical characteristics of LGMD2E (type-2E LGMD) in Korea and provides genetic confirmation of the disease.
참고문헌 (10)
- Ozawa E, "Molecular and cell biology of the sarcoglycan complex", Muscle Nerve, 32, pp.563~576 (2005)
- Moore SA, "Limb-girdle muscular dystrophy in the United States", J Neuropathol Exp Neurol, 65, pp.995~1003 (2006)
- Rosales XQ, "Childhood onset of limb-girdle muscular dystrophy", Pediatr Neurol, 46, pp.13~23 (2012)
- Park HJ, "Discovery of pathogenic variants in a large Korean cohort of inherited muscular disorders", Clin Genet, 91, pp.403~410 (2017)
- Semplicini C, "Clinical and genetic spectrum in limb-girdle muscular dystrophy type 2E", Neurology, 84, pp.1772~1781 (2015)
- Bönnemann CG, "LGMD 2E in Tunisia is caused by a homozygous missense variant in beta-sarcoglycan exon 3", Neuromuscul Disord, 8, pp.193~197 (1998)
- Bönnemann CG, "Genomic screening for beta-sarcoglycan gene mutations : missense mutations may cause severe limb-girdle muscular dystrophy type 2E(LGMD 2E)", Hum Mol Genet, 5, pp.1953~1961 (1996)
- Khadilkar SV, "Spectrum of variants in sarcoglycan genes in the Mumbai region of western India : high prevalence of 525del T", Neurol India, 57, pp.406~ (2009)
- Moreira E, "Genotype-phenotype correlations in 35 Brazilian families with sarcoglycanopathies including the description of three novel variants", J Med Genet, 40, pp.e12~ (2003)
- Xie Z, "Clinical and genetic spectrum of sarcoglycanopathies in a large cohort of Chinese patients", Orphanet J Rare Dis, 14, pp.43~ (2019)
