Abstract:
:We ascertained three consanguineous Pakistani families (PKDF291, PKDF335 and PKDF793) segregating nonsyndromic recessive hearing loss. The hearing loss segregating in PKDF335 and PKDF793 is moderate to severe, whereas it is profound in PKDF291. The maximum two-point LOD scores are 3.01 (D19S1034), 3.85 (D19S894) and 3.71 (D19S894) for PKDF291, PKDF335 and PKDF793, respectively. Haplotype analyses of the three families define a 1.16 Mb region of overlap of the homozygous linkage intervals bounded by markers D19S216 (20.01 cM) and D19S1034 (20.75 cM). These results define a novel locus, DFNB72, on chromosome 19p13.3. There are at least 22 genes in the 1.16 Mb interval, including PTPRS, ZNRF4 and CAPS. We identified no pathogenic variants in the exons and flanking intronic sequences of these three genes in affected members of the DFNB72 families. DFNB72 is telomeric to DFNB68, the only other known deafness locus with statistically significant support for linkage to chromosome 19p.
journal_name
Hum Genetjournal_title
Human geneticsauthors
Ain Q,Nazli S,Riazuddin S,Jaleel AU,Riazuddin SA,Zafar AU,Khan SN,Husnain T,Griffith AJ,Ahmed ZM,Friedman TB,Riazuddin Sdoi
10.1007/s00439-007-0418-zsubject
Has Abstractpub_date
2007-12-01 00:00:00pages
445-50issue
5eissn
0340-6717issn
1432-1203journal_volume
122pub_type
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