%610248
Table of Contents
Cytogenetic location: 20q13.2-q13.3 Genomic coordinates (GRCh38) : 20:51,200,001-64,444,167
Location | Phenotype |
Phenotype MIM number |
Inheritance |
Phenotype mapping key |
---|---|---|---|---|
20q13.2-q13.3 | Deafness, autosomal recessive 65 | 610248 | AR | 2 |
Tariq et al. (2006) reported a consanguineous family from a region bordering Pakistan and India in which 4 sibs had nonsyndromic, prelingual profound hearing impairment involving all frequencies.
By genomewide linkage analysis followed by fine mapping in a consanguineous family segregating autosomal recessive deafness, Tariq et al. (2006) identified a locus, termed DFNB65, on chromosome 20q13.2-q13.32 (maximum multipoint lod score of 3.3 at marker D20S840). Haplotype analysis defined a 4.3-Mb (10.5-cM) region between D20S480 and D20S430.
Exclusion Studies
Tariq et al. (2006) excluded mutation in the BMP7 gene (112267) in affected members of a family with deafness mapping to chromosome 20q13.2-q13.32.
ORPHA: 90636; DO: 0110516;
Cytogenetic location: 20q13.2-q13.3 Genomic coordinates (GRCh38) : 20:51,200,001-64,444,167
Location | Phenotype |
Phenotype MIM number |
Inheritance |
Phenotype mapping key |
---|---|---|---|---|
20q13.2-q13.3 | Deafness, autosomal recessive 65 | 610248 | Autosomal recessive | 2 |
Tariq et al. (2006) reported a consanguineous family from a region bordering Pakistan and India in which 4 sibs had nonsyndromic, prelingual profound hearing impairment involving all frequencies.
By genomewide linkage analysis followed by fine mapping in a consanguineous family segregating autosomal recessive deafness, Tariq et al. (2006) identified a locus, termed DFNB65, on chromosome 20q13.2-q13.32 (maximum multipoint lod score of 3.3 at marker D20S840). Haplotype analysis defined a 4.3-Mb (10.5-cM) region between D20S480 and D20S430.
Exclusion Studies
Tariq et al. (2006) excluded mutation in the BMP7 gene (112267) in affected members of a family with deafness mapping to chromosome 20q13.2-q13.32.
Tariq, A., Santos, R. L. P., Khan, M. N., Lee, K., Hassan, M. J., Ahmad, W., Leal, S. M. Localization of the novel autosomal recessive nonsyndromic hearing impairment locus DFNB65 to chromosome 20q13.2-q13.32. J. Molec. Med. 85: 484-490, 2006.
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