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Fusion of the COL1A1 and USP6 genes in a benign bone tumor.
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- Panagopoulos, Ioannis (author)
- Lund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine
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- Mertens, Fredrik (author)
- Lund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine
- Löfvenberg, Richard (author)
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- (creator_code:org_t)
- Elsevier BV, 2008
- 2008
- English.
- In: Cancer Genetics and Cytogenetics. - : Elsevier BV. - 0165-4608. ; 180:1, s. 70-73
- Journal article (peer-reviewed)
Abstract
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- Aneurysmal bone cyst (ABC) is a benign intraskeletal cyst that often expands rapidly and shows a strong tendency to recur. Rearrangement of chromosome band 17p13 is a characteristic genetic feature of ABC, with t(16;17)(q22;p13) the most frequent chromosomal aberration. This translocation generates a CDH11-USP6 fusion gene in which the strong promoter of osteoblast cadherin 11 gene at 16q22 is fused to the entire ubiquitin-specific protease 6 coding sequence at 17p13. As a result, USP6 (alias Tre2) is transcriptionally upregulated. Fusion genes of several variant translocations have been reported in ABC, including a case with t(17;17) and COL1A1-USP6 fusion. In each translocation, the entire USP6 coding sequence is fused downstream to the promoter region of the partner gene. Here we report a second case of a bone tumor carrying a t(17;17) resulting in a COL1A1-USP6 chimeric gene. As in the previous case, exon 1 of COL1A1 was fused to exon 2 of USP6 in the chimeric transcript. A translation process of the hybrid transcript using the starting ATG codon of the COL1A1 gene results in a truncated, 38 amino acid residues variant of the COL1A1 peptide. Although a pathogenic effect of the small COL1A1 peptide cannot be ruled out, overexpression of USP6 through fusion with the COL1A1 promoter is a more reasonable hypothesis.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Medicinsk genetik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medical Genetics (hsv//eng)
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