A deleterious founder mutation in the BMPER gene causes diaphanospondylodysostosis (DSD)

Diaphonospondylodysostosis (DSD) is a rare, recessively inherited, lethal skeletal dysplasia, characterized by severe spinal ossification, segmentation defects, and renal cystic dysplasia with nephrogenic rests. We hereby present three affected individuals: two children and a fetus from two unrelate...

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Veröffentlicht in:American journal of medical genetics. Part A 2011-11, Vol.155 (11), p.2801-2806
Hauptverfasser: Ben‐Neriah, Ziva, Michaelson‐Cohen, Rachel, Inbar‐Feigenberg, Michal, Nadjari, Michael, Zeligson, Sharon, Shaag, Avraham, Zenvirt, Shamir, Elpeleg, Orly, Levy‐Lahad, Ephrat
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container_issue 11
container_start_page 2801
container_title American journal of medical genetics. Part A
container_volume 155
creator Ben‐Neriah, Ziva
Michaelson‐Cohen, Rachel
Inbar‐Feigenberg, Michal
Nadjari, Michael
Zeligson, Sharon
Shaag, Avraham
Zenvirt, Shamir
Elpeleg, Orly
Levy‐Lahad, Ephrat
description Diaphonospondylodysostosis (DSD) is a rare, recessively inherited, lethal skeletal dysplasia, characterized by severe spinal ossification, segmentation defects, and renal cystic dysplasia with nephrogenic rests. We hereby present three affected individuals: two children and a fetus from two unrelated East Jerusalem Arab‐Muslim families. Whereas most fetuses die in utero or perinatally, one of the children survived to 15 months. Homozygosity mapping in the two families demonstrated a single common 3.87 Mb region on chromosome 7, ruling out previously known spondylocostal/spondylothoracic dysostosis loci. The 15 protein coding genes in the region were prioritized, and some were sequenced. A single, novel deleterious mutation, Q104X, was detected in the bone morphogenetic protein‐binding endothelial regulator protein (BMPER) gene, recently reported to be mutated in other DSD patients [Funari et al., 2010]. The novel mutation we identified is an ancestral founder allele, as evidenced by a shared 440 SNP haplotype, and its frequency in the general Arab population is estimated to be
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We hereby present three affected individuals: two children and a fetus from two unrelated East Jerusalem Arab‐Muslim families. Whereas most fetuses die in utero or perinatally, one of the children survived to 15 months. Homozygosity mapping in the two families demonstrated a single common 3.87 Mb region on chromosome 7, ruling out previously known spondylocostal/spondylothoracic dysostosis loci. The 15 protein coding genes in the region were prioritized, and some were sequenced. A single, novel deleterious mutation, Q104X, was detected in the bone morphogenetic protein‐binding endothelial regulator protein (BMPER) gene, recently reported to be mutated in other DSD patients [Funari et al., 2010]. The novel mutation we identified is an ancestral founder allele, as evidenced by a shared 440 SNP haplotype, and its frequency in the general Arab population is estimated to be &lt;1:123. Our findings confirm loss of BMPER function as a cause of axial versus appendicular skeletal defects, and suggest that less deleterious mutations may be involved in milder axial skeleton abnormalities. © 2011 Wiley Periodicals, Inc.</description><identifier>ISSN: 1552-4825</identifier><identifier>ISSN: 1552-4833</identifier><identifier>EISSN: 1552-4833</identifier><identifier>DOI: 10.1002/ajmg.a.34240</identifier><identifier>PMID: 21990102</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Arabs - genetics ; Biological and medical sciences ; BMPER gene ; Bone (axial) ; Bone dysplasia ; Carrier Proteins - genetics ; Children ; chromosome 7 ; Chromosome Mapping ; Chromosomes, Human, Pair 17 - genetics ; Classical genetics, quantitative genetics, hybrids ; diaphonospondylodysostosis ; Dysostosis ; Female ; Fetuses ; Founder Effect ; Fundamental and applied biological sciences. 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Part A</title><addtitle>Am J Med Genet A</addtitle><description>Diaphonospondylodysostosis (DSD) is a rare, recessively inherited, lethal skeletal dysplasia, characterized by severe spinal ossification, segmentation defects, and renal cystic dysplasia with nephrogenic rests. We hereby present three affected individuals: two children and a fetus from two unrelated East Jerusalem Arab‐Muslim families. Whereas most fetuses die in utero or perinatally, one of the children survived to 15 months. Homozygosity mapping in the two families demonstrated a single common 3.87 Mb region on chromosome 7, ruling out previously known spondylocostal/spondylothoracic dysostosis loci. The 15 protein coding genes in the region were prioritized, and some were sequenced. A single, novel deleterious mutation, Q104X, was detected in the bone morphogenetic protein‐binding endothelial regulator protein (BMPER) gene, recently reported to be mutated in other DSD patients [Funari et al., 2010]. The novel mutation we identified is an ancestral founder allele, as evidenced by a shared 440 SNP haplotype, and its frequency in the general Arab population is estimated to be &lt;1:123. 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Psychology</topic><topic>Gene Frequency</topic><topic>Gene mapping</topic><topic>Genetic Counseling</topic><topic>Genetics of eukaryotes. 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A single, novel deleterious mutation, Q104X, was detected in the bone morphogenetic protein‐binding endothelial regulator protein (BMPER) gene, recently reported to be mutated in other DSD patients [Funari et al., 2010]. The novel mutation we identified is an ancestral founder allele, as evidenced by a shared 440 SNP haplotype, and its frequency in the general Arab population is estimated to be &lt;1:123. Our findings confirm loss of BMPER function as a cause of axial versus appendicular skeletal defects, and suggest that less deleterious mutations may be involved in milder axial skeleton abnormalities. © 2011 Wiley Periodicals, Inc.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>21990102</pmid><doi>10.1002/ajmg.a.34240</doi><tpages>6</tpages></addata></record>
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subjects Arabs - genetics
Biological and medical sciences
BMPER gene
Bone (axial)
Bone dysplasia
Carrier Proteins - genetics
Children
chromosome 7
Chromosome Mapping
Chromosomes, Human, Pair 17 - genetics
Classical genetics, quantitative genetics, hybrids
diaphonospondylodysostosis
Dysostosis
Female
Fetuses
Founder Effect
Fundamental and applied biological sciences. Psychology
Gene Frequency
Gene mapping
Genetic Counseling
Genetics of eukaryotes. Biological and molecular evolution
Haplotypes
homozygosity mapping
Homozygote
Human
Humans
Infant
Infant, Newborn
Kidney
Medical genetics
Medical sciences
Mutation
Nuchal Translucency Measurement
Ossification
Pedigree
Polymorphism, Single Nucleotide
Population genetics
Population genetics, reproduction patterns
Pregnancy
Pregnancy Trimester, Second - genetics
Radiography
Segmentation
Single-nucleotide polymorphism
skeletal dysplasia
Skeleton
Spondylosis - diagnosis
Spondylosis - diagnostic imaging
Spondylosis - genetics
title A deleterious founder mutation in the BMPER gene causes diaphanospondylodysostosis (DSD)
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