Consolidating biallelic SDHD variants as a cause of mitochondrial complex II deficiency.
Eur J Hum Genet
; 29(10): 1570-1576, 2021 10.
Article
em En
| MEDLINE
| ID: mdl-34012134
ABSTRACT
Isolated mitochondrial complex II deficiency is a rare cause of mitochondrial respiratory chain disease. To date biallelic variants in three genes encoding mitochondrial complex II molecular components have been unequivocally associated with mitochondrial disease (SDHA/SDHB/SDHAF1). Additionally, variants in one further complex II component (SDHD) have been identified as a candidate cause of isolated mitochondrial complex II deficiency in just two unrelated affected individuals with clinical features consistent with mitochondrial disease, including progressive encephalomyopathy and lethal infantile cardiomyopathy. We present clinical and genomic investigations in four individuals from an extended Palestinian family with clinical features consistent with an autosomal recessive mitochondrial complex II deficiency, in which our genomic studies identified a homozygous NM_003002.3c.[205 G > A];[205 G > A];p.[(Glu69Lys)];[(Glu69Lys)] SDHD variant as the likely cause. Reviewing previously published cases, these findings consolidate disruption of SDHD function as a cause of mitochondrial complex II deficiency and further define the phenotypic spectrum associated with SDHD gene variants.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Succinato Desidrogenase
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Mutação de Sentido Incorreto
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Doenças Mitocondriais
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Complexo II de Transporte de Elétrons
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Erros Inatos do Metabolismo
Tipo de estudo:
Prognostic_studies
Limite:
Adult
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Child
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Female
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Humans
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Male
/
Newborn
Idioma:
En
Revista:
Eur J Hum Genet
Assunto da revista:
GENETICA MEDICA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Reino Unido