ArticleEuropean journal of human genetics : EJHG2026
A homozygote mutation in RPA2 associated with bone marrow failure, immunodeficiency, and telomere biology disorder.
Article in European journal of human genetics : EJHG, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Fission yeast RPA-TERT-Tpz1TPP1 complex promotes telomere extension and suppresses telomere recombination.PLoS genetics · 2026Article
- Fission yeast RPA-TERT-Tpz1bioRxiv : the preprint server for biology · 2026Article
- Oxidative base damage to telomeres sensitizes cancer cells to ATR inhibition.Communications biology · 2026Article
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Authors and funding
15 authors.
Funding
Abstract
Telomere biology disorders (TBDs) are characterized by bone marrow failure (BMF) and dysfunctional telomeres. So far, inherited mutations in 18 genes have been identified in TBDs. Here, we describe a child presenting with early BMF, immunodeficiency, and severely short and defective telomeres, carrying a homozygous splicing mutation (c.409-2 A > G; p.Q136_K138del) in RPA2 - a known replication factor and telomerase accessory factor. The Q136_K138del mutation is predicted to compromise the binding of RPA2 to the single-stranded telomeric DNA. Sequencing of single telomeres revealed that telomere variant repeats (TVRs), present also in healthy individuals, became more prominent in the short telomeres of the patient. Such TVRs may aggravate the telomere dysfunction due to lower affinity to the shelterin proteins. The severe telomere shortening and the activation of DNA damage response at telomeres indicate that this RPA2 mutation causes TBD in a similar manner to other known mutations and should be considered in patients displaying clinical TBD features.
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