PMID- 10369879 OWN - NLM STAT- MEDLINE DCOM- 19990816 LR - 20220310 IS - 0964-6906 (Print) IS - 0964-6906 (Linking) VI - 8 IP - 7 DP - 1999 Jul TI - Mutations in the KCNQ4 gene are responsible for autosomal dominant deafness in four DFNA2 families. PG - 1321-8 AB - We have previously found linkage to chromosome 1p34 in five large families with autosomal dominant non-syndromic hearing impairment (DFNA2). In all five families, the connexin31 gene ( GJB3 ), located at 1p34 and responsible for non-syndromic autosomal dominant hearing loss in two small Chinese families, has been excluded as the responsible gene. Recently, a fourth member of the KCNQ branch of the K+channel family, KCNQ4, has been cloned. KCNQ4 was mapped to chromosome 1p34 and a single mutation was found in three patients from a small French family with non-syndromic autosomal dominant hearing loss. In this study, we have analysed the KCNQ4 gene for mutations in our five DFNA2 families. Missense mutations altering conserved amino acids were found in three families and an inactivating deletion was present in a fourth family. No KCNQ4 mutation could be found in a single DFNA2 family of Indonesian origin. These results indicate that at least two and possibly three genes responsible for hearing impairment are located close together on chromosome 1p34 and suggest that KCNQ4 mutations may be a relatively frequent cause of autosomal dominant hearing loss. FAU - Coucke, P J AU - Coucke PJ AD - Department of Medical Genetics, University of Antwerp-UIA, Universiteitsplein 1, 2610 Antwerp, Belgium, FAU - Van Hauwe, P AU - Van Hauwe P FAU - Kelley, P M AU - Kelley PM FAU - Kunst, H AU - Kunst H FAU - Schatteman, I AU - Schatteman I FAU - Van Velzen, D AU - Van Velzen D FAU - Meyers, J AU - Meyers J FAU - Ensink, R J AU - Ensink RJ FAU - Verstreken, M AU - Verstreken M FAU - Declau, F AU - Declau F FAU - Marres, H AU - Marres H FAU - Kastury, K AU - Kastury K FAU - Bhasin, S AU - Bhasin S FAU - McGuirt, W T AU - McGuirt WT FAU - Smith, R J AU - Smith RJ FAU - Cremers, C W AU - Cremers CW FAU - Van de Heyning, P AU - Van de Heyning P FAU - Willems, P J AU - Willems PJ FAU - Smith, S D AU - Smith SD FAU - Van Camp, G AU - Van Camp G LA - eng GR - P20RR11145-01/RR/NCRR NIH HHS/United States GR - R01 DC02942-03/DC/NIDCD NIH HHS/United States GR - R01DCO2842/DC/NIDCD NIH HHS/United States GR - etc. PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Hum Mol Genet JT - Human molecular genetics JID - 9208958 RN - 0 (Genetic Markers) RN - 0 (KCNQ Potassium Channels) RN - 0 (KCNQ4 protein, human) RN - 0 (Potassium Channels) RN - 0 (Potassium Channels, Voltage-Gated) SB - IM MH - Amino Acid Sequence MH - Chromosome Mapping MH - Chromosomes, Human, Pair 1 MH - DNA Mutational Analysis MH - Deafness/*genetics MH - Expressed Sequence Tags MH - Female MH - Genetic Linkage MH - Genetic Markers MH - Humans MH - KCNQ Potassium Channels MH - Male MH - Molecular Sequence Data MH - *Mutation MH - Potassium Channels/*genetics MH - *Potassium Channels, Voltage-Gated MH - Sequence Alignment MH - Sequence Homology, Amino Acid EDAT- 1999/06/17 00:00 MHDA- 1999/06/17 00:01 CRDT- 1999/06/17 00:00 PHST- 1999/06/17 00:00 [pubmed] PHST- 1999/06/17 00:01 [medline] PHST- 1999/06/17 00:00 [entrez] AID - ddc143 [pii] AID - 10.1093/hmg/8.7.1321 [doi] PST - ppublish SO - Hum Mol Genet. 1999 Jul;8(7):1321-8. doi: 10.1093/hmg/8.7.1321.