Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient

Abstract Background Of the many types of mitochondrial diseases, mutations affecting BCS1L gene are regarded as chief cause of the defective mitochondrial complex-III, affecting normal mitochondrial functioning, and leading to wide variety of phenotypes. Case presentation In this case report we desc...

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Main Authors: Mansour Al Qurashi, Ahmed Mustafa, Syed Sameer Aga, Abrar Ahmad, Abdellatif El-Farra, Aiman Shawli, Mohammed Al Hindi, Mohammed Hasosah
Format: Article
Language:English
Published: BMC 2022-03-01
Series:BMC Medical Genomics
Subjects:
Online Access:https://doi.org/10.1186/s12920-022-01210-2
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author Mansour Al Qurashi
Ahmed Mustafa
Syed Sameer Aga
Abrar Ahmad
Abdellatif El-Farra
Aiman Shawli
Mohammed Al Hindi
Mohammed Hasosah
author_facet Mansour Al Qurashi
Ahmed Mustafa
Syed Sameer Aga
Abrar Ahmad
Abdellatif El-Farra
Aiman Shawli
Mohammed Al Hindi
Mohammed Hasosah
author_sort Mansour Al Qurashi
collection DOAJ
description Abstract Background Of the many types of mitochondrial diseases, mutations affecting BCS1L gene are regarded as chief cause of the defective mitochondrial complex-III, affecting normal mitochondrial functioning, and leading to wide variety of phenotypes. Case presentation In this case report we describe a novel genotype linked to a unique phenotype in a Saudi patient born of a consanguineous marriage. Detailed genetic analysis and whole genome sequencing identified a novel homozygous missense mutation in exon 5 c.712A > G (p.Ser328Gly) of the BCS1L gene, with predicted deleterious effects on the functioning AAA+-ATPase domain of the protein characterized by distinct clinical presentation associated with profound multisystem involvement, conductive hearing loss, absent external auditory canal, low posterior hair line, short neck, micro and retrognathia, over riding fingers, rocker bottom foot, small phallus with bilateral absent testis (empty scrotum) and intolerable lactic acidosis. Conclusions A pathogenic effect of this novel BCS1L mutation was reflected in the patient with his failure to thrive and a complex clinical and metabolic phenotype.
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spelling doaj.art-6797a8091da84c42802e1a9290a04e832022-12-21T23:51:21ZengBMCBMC Medical Genomics1755-87942022-03-011511910.1186/s12920-022-01210-2Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patientMansour Al Qurashi0Ahmed Mustafa1Syed Sameer Aga2Abrar Ahmad3Abdellatif El-Farra4Aiman Shawli5Mohammed Al Hindi6Mohammed Hasosah7Department of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Basic Medical Sciences, College of Medicine, King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), King Abdullah International Medical Research Centre (KAIMRC), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityDepartment of Pediatrics, Neonatology Division, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (NGHA), King Abdulaziz Medical CityAbstract Background Of the many types of mitochondrial diseases, mutations affecting BCS1L gene are regarded as chief cause of the defective mitochondrial complex-III, affecting normal mitochondrial functioning, and leading to wide variety of phenotypes. Case presentation In this case report we describe a novel genotype linked to a unique phenotype in a Saudi patient born of a consanguineous marriage. Detailed genetic analysis and whole genome sequencing identified a novel homozygous missense mutation in exon 5 c.712A > G (p.Ser328Gly) of the BCS1L gene, with predicted deleterious effects on the functioning AAA+-ATPase domain of the protein characterized by distinct clinical presentation associated with profound multisystem involvement, conductive hearing loss, absent external auditory canal, low posterior hair line, short neck, micro and retrognathia, over riding fingers, rocker bottom foot, small phallus with bilateral absent testis (empty scrotum) and intolerable lactic acidosis. Conclusions A pathogenic effect of this novel BCS1L mutation was reflected in the patient with his failure to thrive and a complex clinical and metabolic phenotype.https://doi.org/10.1186/s12920-022-01210-2BCS1L geneComplex IIIMitopathyMetabolic acidosisBjörnstad syndromeLeigh syndrome
spellingShingle Mansour Al Qurashi
Ahmed Mustafa
Syed Sameer Aga
Abrar Ahmad
Abdellatif El-Farra
Aiman Shawli
Mohammed Al Hindi
Mohammed Hasosah
Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient
BMC Medical Genomics
BCS1L gene
Complex III
Mitopathy
Metabolic acidosis
Björnstad syndrome
Leigh syndrome
title Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient
title_full Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient
title_fullStr Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient
title_full_unstemmed Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient
title_short Clinical and diagnostic characteristics of complex III mitopathy due to novel BCS1L gene mutation in a Saudi patient
title_sort clinical and diagnostic characteristics of complex iii mitopathy due to novel bcs1l gene mutation in a saudi patient
topic BCS1L gene
Complex III
Mitopathy
Metabolic acidosis
Björnstad syndrome
Leigh syndrome
url https://doi.org/10.1186/s12920-022-01210-2
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