Ahmed Zubair M, Morell Robert J, Riazuddin Saima, Gropman Andrea, Shaukat Shahzad, Ahmad Mussaber M, Mohiddin Saidi A, Fananapazir Lameh, Caruso Rafael C, Husnain Tayyab, Khan Shaheen N, Riazuddin Sheikh, Griffith Andrew J, Friedman Thomas B, Wilcox Edward R
Section on Human Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Rockville, MD 20850, USA.
Am J Hum Genet. 2003 May;72(5):1315-22. doi: 10.1086/375122. Epub 2003 Apr 8.
Cosegregation of profound, congenital deafness with markers on chromosome 6q13 in three Pakistani families defines a new recessive deafness locus, DFNB37. Haplotype analyses reveal a 6-cM linkage region, flanked by markers D6S1282 and D6S1031, that includes the gene encoding unconventional myosin VI. In families with recessively inherited deafness, DFNB37, our sequence analyses of MYO6 reveal a frameshift mutation (36-37insT), a nonsense mutation (R1166X), and a missense mutation (E216V). These mutations, along with a previously published missense allele linked to autosomal dominant progressive hearing loss (DFNA22), provide an allelic spectrum that probes the relationship between myosin VI dysfunction and the resulting phenotype.
在三个巴基斯坦家庭中,严重先天性耳聋与6号染色体q13上的标记共分离,确定了一个新的隐性耳聋位点DFNB37。单倍型分析揭示了一个6厘摩的连锁区域,两侧为标记D6S1282和D6S1031,该区域包含编码非常规肌球蛋白VI的基因。在隐性遗传性耳聋的家庭中,即DFNB37,我们对MYO6的序列分析发现了一个移码突变(36 - 37insT)、一个无义突变(R1166X)和一个错义突变(E216V)。这些突变,连同先前发表的与常染色体显性进行性听力损失相关的错义等位基因(DFNA22),提供了一个等位基因谱,用于探究肌球蛋白VI功能障碍与所产生表型之间的关系。