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Mutations in CTC1, encoding conserved telomere maintenance component 1, cause Coats plus
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2012 (English)In: Nature Genetics, ISSN 1061-4036, Vol. 44, no 3, 338-342 p.Article in journal (Refereed) Published
Abstract [en]

Coats plus is a highly pleiotropic disorder particularly affecting the eye, brain, bone and gastrointestinal tract. Here, we show that Coats plus results from mutations in CTC1, encoding conserved telomere maintenance component 1, a member of the mammalian homolog of the yeast heterotrimeric CST telomeric capping complex. Consistent with the observation of shortened telomeres in an Arabidopsis CTC1 mutant and the phenotypic overlap of Coats plus with the telomeric maintenance disorders comprising dyskeratosis congenita, we observed shortened telomeres in three individuals with Coats plus and an increase in spontaneous gamma H2AX-positive cells in cell lines derived from two affected individuals. CTC1 is also a subunit of the alpha-accessory factor (AAF) complex, stimulating the activity of DNA polymerase-alpha primase, the only enzyme known to initiate DNA replication in eukaryotic cells. Thus, CTC1 may have a function in DNA metabolism that is necessary for but not specific to telomeric integrity.

Place, publisher, year, edition, pages
2012. Vol. 44, no 3, 338-342 p.
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Medical and Health Sciences
URN: urn:nbn:se:uu:diva-171658DOI: 10.1038/ng.1084ISI: 000300843600023OAI: oai:DiVA.org:uu-171658DiVA: diva2:512259
Available from: 2012-03-27 Created: 2012-03-25 Last updated: 2014-03-20Bibliographically approved

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Lundberg, Staffan
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Department of Women's and Children's Health
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