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Molecular configuration of human genome neighboring megabase-sized large deletions induced by X-ray irradiation
https://repo.qst.go.jp/records/82289
https://repo.qst.go.jp/records/82289e3279bf6-6d47-46cc-a8de-a2355428dbd7
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-19 | |||||
タイトル | ||||||
タイトル | Molecular configuration of human genome neighboring megabase-sized large deletions induced by X-ray irradiation | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Hirose, Eri
× Hirose, Eri× Suzuki, Keiji× Akinari, Yokoya× Akinari, Yokoya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The genomic landscape neighboring large deletions including the hypoxanthine-guanine phosphoribosyl transferase (HPRT) locus on human X chromosome in 6-thioguanine-resistant mutants originating from immortalized human fibroblast cells exposed to X-rays was characterized by real-time quantitative PCR (qPCR)-based analyses. Among the 13 mutant clones with large deletions extending over several Mb, including the HPRT locus, revealed by 10 conventional sequence-tagged site (STS) markers, three clones bearing the largest deletions were selected for further qPCR analysis using another 21 STS markers and 15 newly designed PCR primer pairs. The results indicated that the major deletions were in very specific regions between the 130 Mb and 140 Mb positions containing the HPRT locus on the X chromosome and, contrary to our initial expectations, additional minor deletions were distributed in a patchwork pattern. These findings strongly indicate that the complex deletion patterns in the affected chromosome are related to the radiation track structure with spatially heterogeneous energy deposition and the specific structure of the chromatin-nuclear membrane complex. The uncovered complex deletion patterns are in agreement with the idea of complex chromatin damage, which is frequently associated with carcinogenesis. | |||||
書誌情報 |
Radiation Research 巻 195, 号 6, p. 561-567, 発行日 2021-03 |
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出版者 | ||||||
出版者 | Radiation Research Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0033-7587 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1667/RR15229.1 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://meridian.allenpress.com/radiation-research/article/195/6/561/463711/Molecular-Configuration-of-Human-Genome |