%605818
Table of Contents
HGNC Approved Gene Symbol: DFNB27
Cytogenetic location: 2q23-q31 Genomic coordinates (GRCh38) : 2:147,900,001-182,100,000
By use of autozygosity mapping in a large consanguineous family from the United Arab Emirates, Pulleyn et al. (2000) identified a locus for autosomal recessive nonsyndromic, prelingual, sensorineural hearing impairment, designated DFNB27, on chromosome 2q23-q31. An ancestral haplotype was shared by all 7 affected members, with a 17-cM minimum critical region between markers D2S2157 and D2S2273 and a maximum 2-point lod score of 5.18 at theta = 0.0 for marker D2S2257. The DFNB27 critical region overlapped with the critical region to which another deafness locus, DFNA16 (603964), had been mapped in a family with fluctuating, progressive autosomal dominant nonsyndromic hearing loss. The authors noted that several sodium-channel alpha-subunit genes map to the critical region and are candidate genes for both DFNA16 and DFNB27.
Pulleyn, L. J., Jackson, A. P., Roberts, E., Carridice, A., Muxworthy, C., Houseman, M., Al-Gazali, L. I., Lench, N. J., Markham, A. F., Mueller, R. F. A new locus for autosomal recessive non-syndromal sensorineural hearing impairment (DFNB27) on chromosome 2q23-q31. Europ. J. Hum. Genet. 8: 991-993, 2000. [PubMed: 11175289, related citations] [Full Text]
HGNC Approved Gene Symbol: DFNB27
ORPHA: 90636; DO: 0110485;
Cytogenetic location: 2q23-q31 Genomic coordinates (GRCh38) : 2:147,900,001-182,100,000
Location | Phenotype |
Phenotype MIM number |
Inheritance |
Phenotype mapping key |
---|---|---|---|---|
2q23-q31 | Deafness, autosomal recessive 27 | 605818 | Autosomal recessive | 2 |
By use of autozygosity mapping in a large consanguineous family from the United Arab Emirates, Pulleyn et al. (2000) identified a locus for autosomal recessive nonsyndromic, prelingual, sensorineural hearing impairment, designated DFNB27, on chromosome 2q23-q31. An ancestral haplotype was shared by all 7 affected members, with a 17-cM minimum critical region between markers D2S2157 and D2S2273 and a maximum 2-point lod score of 5.18 at theta = 0.0 for marker D2S2257. The DFNB27 critical region overlapped with the critical region to which another deafness locus, DFNA16 (603964), had been mapped in a family with fluctuating, progressive autosomal dominant nonsyndromic hearing loss. The authors noted that several sodium-channel alpha-subunit genes map to the critical region and are candidate genes for both DFNA16 and DFNB27.
Pulleyn, L. J., Jackson, A. P., Roberts, E., Carridice, A., Muxworthy, C., Houseman, M., Al-Gazali, L. I., Lench, N. J., Markham, A. F., Mueller, R. F. A new locus for autosomal recessive non-syndromal sensorineural hearing impairment (DFNB27) on chromosome 2q23-q31. Europ. J. Hum. Genet. 8: 991-993, 2000. [PubMed: 11175289] [Full Text: https://doi.org/10.1038/sj.ejhg.5200567]
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