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We demonstrate that the cytogenetically defined translocation t(X;18)(p11.2;q11.2) found in human synovial sarcoma results in the fusion of the chromosome 18 SYT gene to either of two distinct genes, SSX1 or SSX2, at Xp11.2. The SSX1 and SSX2 genes encode closely related proteins (81% identity) of 188 amino acids that are rich in charged amino acids. The(More)
We have introduced a 6.5 Mb human mini-chromosome with a complex centromere structure into DT40 cells and have used sequence targeting and telomere-directed chromosome breakage to dissect the sequence requirements for centromere function. These experiments proved that a vertebrate centromere with two blocks of functional alphoid DNA separated by 2.5 Mb can(More)
Analysis of four YACs at the OATL1 locus was undertaken to determine the organization of locally repeated sequences within the OATL1 cluster. A restriction map of ICRFy900C0874, a 600-kb YAC, was constructed using a range of rare-cutting enzymes. Several markers were isolated from the OATL1 cluster, and the YAC map was used for their localization. Markers(More)
We have constructed two YAC contigs in the Xp11.23-p11.22 interval of the human X chromosome, a region that was previously poorly characterized. One contig, of at least 1.4 Mb, links the pseudogene OATL1 to the genes GATA1, TFE3, and SYP and also contains loci implicated in Wiskott-Aldrich syndrome and synovial sarcoma. A second contig, mapping proximal to(More)
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