%607239
Table of Contents
Cytogenetic location: 10p11.23-q21.1 Genomic coordinates (GRCh38) : 10:29,300,001-59,400,000
Location | Phenotype |
Phenotype MIM number |
Inheritance |
Phenotype mapping key |
---|---|---|---|---|
10p11.23-q21.1 | Deafness, autosomal recessive 33 | 607239 | AR | 2 |
Medlej-Hashim et al. (2002) described 4 members of a consanguineous Jordanian family with severe hearing loss. Age at onset was in early childhood.
By genomewide linkage analysis, followed by homozygosity mapping, in a consanguineous Jordanian family segregating nonsyndromic deafness, Medlej-Hashim et al. (2002) mapped the deafness locus, designated DFNB33, to a 6.3-cM region between markers D9S1826 and D9S1838. Sequence analysis excluded mutations in 23 candidate genes in this interval on chromosome 9q34 (Belguith et al., 2009). In a reanalysis of the genomewide screening results from the Jordanian family reported by Medlej-Hashim et al. (2002), Belguith et al. (2009) identified a second candidate peak on chromosome 10. Using additional markers to analyze this family, the authors identified linkage to a 13.8-cM region on chromosome 10p11.23-q21.1 (maximum lod score of 3.99 at D10S199 and D10S220). Belguith et al. (2009) stated that they reassigned the DFNB33 locus to chromosome 10p11.23-q21.1 and concluded that the previous assignment to 9q34.3 was not identity by descent but rather homozygosity by chance. Sequence analysis excluded mutations in the CX40.1 (611922) and FXYD4 (616926) genes on chromosome 10.
Belguith, H., Masmoudi, S., Medlej-Hashim, M., Chouery, E., Weil, D., Ayadi, H., Petit, C., Megarbane, A. Re-assigning the DFNB33 locus to chromosome 10p11.23-q21.1. Europ. J. Hum. Genet. 17: 122-124, 2009. [PubMed: 18781188, images, related citations] [Full Text]
Medlej-Hashim, M., Mustapha, M., Chouery, E., Weil, D., Parronaud, J., Salem, N., Delague, V., Loiselet, J., Lathrop, M., Petit, C., Megarbane, A. Non-syndromic recessive deafness in Jordan: mapping of a new locus to chromosome 9q34.3 and prevalence of DFNB1 mutations. Europ. J. Hum. Genet. 10: 391-394, 2002. [PubMed: 12080392, related citations] [Full Text]
ORPHA: 90636; DO: 0110492;
Cytogenetic location: 10p11.23-q21.1 Genomic coordinates (GRCh38) : 10:29,300,001-59,400,000
Location | Phenotype |
Phenotype MIM number |
Inheritance |
Phenotype mapping key |
---|---|---|---|---|
10p11.23-q21.1 | Deafness, autosomal recessive 33 | 607239 | Autosomal recessive | 2 |
Medlej-Hashim et al. (2002) described 4 members of a consanguineous Jordanian family with severe hearing loss. Age at onset was in early childhood.
By genomewide linkage analysis, followed by homozygosity mapping, in a consanguineous Jordanian family segregating nonsyndromic deafness, Medlej-Hashim et al. (2002) mapped the deafness locus, designated DFNB33, to a 6.3-cM region between markers D9S1826 and D9S1838. Sequence analysis excluded mutations in 23 candidate genes in this interval on chromosome 9q34 (Belguith et al., 2009). In a reanalysis of the genomewide screening results from the Jordanian family reported by Medlej-Hashim et al. (2002), Belguith et al. (2009) identified a second candidate peak on chromosome 10. Using additional markers to analyze this family, the authors identified linkage to a 13.8-cM region on chromosome 10p11.23-q21.1 (maximum lod score of 3.99 at D10S199 and D10S220). Belguith et al. (2009) stated that they reassigned the DFNB33 locus to chromosome 10p11.23-q21.1 and concluded that the previous assignment to 9q34.3 was not identity by descent but rather homozygosity by chance. Sequence analysis excluded mutations in the CX40.1 (611922) and FXYD4 (616926) genes on chromosome 10.
Belguith, H., Masmoudi, S., Medlej-Hashim, M., Chouery, E., Weil, D., Ayadi, H., Petit, C., Megarbane, A. Re-assigning the DFNB33 locus to chromosome 10p11.23-q21.1. Europ. J. Hum. Genet. 17: 122-124, 2009. [PubMed: 18781188] [Full Text: https://doi.org/10.1038/ejhg.2008.155]
Medlej-Hashim, M., Mustapha, M., Chouery, E., Weil, D., Parronaud, J., Salem, N., Delague, V., Loiselet, J., Lathrop, M., Petit, C., Megarbane, A. Non-syndromic recessive deafness in Jordan: mapping of a new locus to chromosome 9q34.3 and prevalence of DFNB1 mutations. Europ. J. Hum. Genet. 10: 391-394, 2002. [PubMed: 12080392] [Full Text: https://doi.org/10.1038/sj.ejhg.5200813]
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