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A pair of female monozygotic (MZ) twins, heterozygous carriers for a deletion in the DMD gene and discordant for the clinical manifestations of Duchenne muscular dystrophy, were analyzed by molecular studies, in situ hybridization, and methylation pattern of X chromosomes to search for opposite X inactivation as an explanation of their clinical discordance.(More)
DNA probe screening of somatic cell hybrids derived from females with X;autosome translocations has enabled us to define eight new breakpoints within the Xq13-q22 region. Together with other X-chromosome rearrangements that have been described earlier, these breakpoints subdivide the Xq21-q22 region into 20 intervals. Our panel refines the physical(More)
Molecular and behavioral evidence suggests that acid-sensing ion channels (ASICs) contribute to pain processing, but an understanding of their precise role remains elusive. Existing ASIC knock-out mouse experiments are complicated by the heteromultimerization of ASIC subunits. Therefore, we have generated transgenic mice that express a dominant-negative(More)
Monozygotic twin girls, both carriers of Duchenne muscular dystrophy, only one a severe symptomatic carrier and the other asymptomatic due to opposite lyonization, were studied. Myoblast clones were obtained from a muscle biopsy of the asymptomatic carrier. PCR amplification showed that most (94%) of these clones produced normal dystrophin mRNA. Roughly 704(More)
Recently some of us cloned a new probe RN1 (DXS369), which appears a close marker for the fragile X locus (FRAXA) [Oostra et al.: Genomics 1990]. We present here new evidence for its physical and genetic mapping in the DXS98--FRAXA interval. We used 2 different somatic cell hybrid lines with breakpoints in the Xq27-q28 region: L10B Rea and PeCHN, and we(More)
A list of reciprocal translocations and Robertsonian translocations is provided in Fig. 1. There are no new listings or new data about these aberrations. Cytogenetic assignments are also illustrated in Fig. 1. The new assignments are Ctla-7 distal to Tcra by in situ hybridization (Jenne et al. 1991) and Rarb to band A (Mattei et al. 1991). Both(More)
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