Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients

Abstract Recently, biallelic variants in the SORD gene were identified as causal for axonal hereditary neuropathy (HN). We ascertained the spectrum and frequency of SORD variants among a large cohort of Czech patients with unknown cause of HN. Exome sequencing data were analysed for SORD (58 patient...

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Autores principales:	P. Laššuthová, R. Mazanec, D. Staněk, L. Sedláčková, B. Plevová, J. Haberlová, P. Seeman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/75c14186278e403295caeb86851b81f1
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spelling	oai:doaj.org-article:75c14186278e403295caeb86851b81f12021-12-02T17:32:58ZBiallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients10.1038/s41598-021-86857-02045-2322https://doaj.org/article/75c14186278e403295caeb86851b81f12021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86857-0https://doaj.org/toc/2045-2322Abstract Recently, biallelic variants in the SORD gene were identified as causal for axonal hereditary neuropathy (HN). We ascertained the spectrum and frequency of SORD variants among a large cohort of Czech patients with unknown cause of HN. Exome sequencing data were analysed for SORD (58 patients). The prevalent c.757del variant was tested with fragment analysis (931 patients). Sanger sequencing in additional 70 patients was done. PCR primers were designed to amplify the SORD gene with the exclusion of the pseudogene SORD2P. Sequence differences between gene and pseudogene were identified and frequencies of SNPs were calculated. Eighteen patients from 16 unrelated families with biallelic variants in the SORD gene were found and the c.757del was present in all patients on at least one allele. Three novel, probably pathogenic, variants were detected, always in a heterozygous state in combination with the c.757del on the second allele. Patients presented with a slowly progressive axonal HN. Almost all patients had moderate pes cavus deformity. SORD neuropathy is frequent in Czech patients and the third most common cause of autosomal recessive HN. The c.757del is highly prevalent. Specific amplification of the SORD gene with the exclusion of the pseudogene is essential for a precise molecular diagnostics.P. LaššuthováR. MazanecD. StaněkL. SedláčkováB. PlevováJ. HaberlováP. SeemanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q P. Laššuthová R. Mazanec D. Staněk L. Sedláčková B. Plevová J. Haberlová P. Seeman Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients
description	Abstract Recently, biallelic variants in the SORD gene were identified as causal for axonal hereditary neuropathy (HN). We ascertained the spectrum and frequency of SORD variants among a large cohort of Czech patients with unknown cause of HN. Exome sequencing data were analysed for SORD (58 patients). The prevalent c.757del variant was tested with fragment analysis (931 patients). Sanger sequencing in additional 70 patients was done. PCR primers were designed to amplify the SORD gene with the exclusion of the pseudogene SORD2P. Sequence differences between gene and pseudogene were identified and frequencies of SNPs were calculated. Eighteen patients from 16 unrelated families with biallelic variants in the SORD gene were found and the c.757del was present in all patients on at least one allele. Three novel, probably pathogenic, variants were detected, always in a heterozygous state in combination with the c.757del on the second allele. Patients presented with a slowly progressive axonal HN. Almost all patients had moderate pes cavus deformity. SORD neuropathy is frequent in Czech patients and the third most common cause of autosomal recessive HN. The c.757del is highly prevalent. Specific amplification of the SORD gene with the exclusion of the pseudogene is essential for a precise molecular diagnostics.
format	article
author	P. Laššuthová R. Mazanec D. Staněk L. Sedláčková B. Plevová J. Haberlová P. Seeman
author_facet	P. Laššuthová R. Mazanec D. Staněk L. Sedláčková B. Plevová J. Haberlová P. Seeman
author_sort	P. Laššuthová
title	Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients
title_short	Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients
title_full	Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients
title_fullStr	Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients
title_full_unstemmed	Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients
title_sort	biallelic variants in the sord gene are one of the most common causes of hereditary neuropathy among czech patients
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/75c14186278e403295caeb86851b81f1
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Biallelic variants in the SORD gene are one of the most common causes of hereditary neuropathy among Czech patients

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