Cited by 414Telomeres, Telomerase, and SenescenceBlood disorders and treatmentsNuclear Structure and Function

TINF2, a Component of the Shelterin Telomere Protection Complex, Is Mutated in Dyskeratosis Congenita

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Savage, Sharon A., Giri, Neelam, Baerlocher, Gabriela M., Orr, Nick, Lansdorp, Peter M., Alter, Blanche P.·2008·The American Journal of Human Genetics

Abstract

Patients with dyskeratosis congenita (DC), a heterogeneous inherited bone marrow failure syndrome, have abnormalities in telomere biology, including very short telomeres and germline mutations in DKC1, TERC, TERT, or NOP10, but approximately 60% of DC patients lack an identifiable mutation. With the very short telomere phenotype and a highly penetrant, rare disease model, a linkage scan was performed on a family with autosomal-dominant DC and no mutations in DKCI, TERC, or TERT. Evidence favoring linkage was found at 2p24 and 14q11.2, and this led to the identification of TINF2 (14q11.2) mutations, K280E, in the proband and her five affected relatives and TINF2 R282H in three additional unrelated DC probands, including one with Revesz syndrome; a fifth DC proband had a R282S mutation. TINF2 mutations were not present in unaffected relatives, DC probands with mutations in DKC1, TERC, or TERT or 298 control subjects. We demonstrate that a fifth gene, TINF2, is mutated in classical DC and, for the first time, in Revesz syndrome. This represents the first shelterin complex mutation linked to human disease and confirms the role of very short telomeres as a diagnostic test for DC.

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Crossref · 10.1016/j.ajhg.2007.10.004

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  • Autosomal dominant DC is caused by mutations in TERT, TERC or TRF1-interacting nuclear factor 2.

    “Autosomal dominant forms are caused by mutations in TERT, TERC or the telomere binding protein TRF1-interacting nuclear factor 2 (156-159).”

    From Telomeres and telomerase in cancer (2010) · cites this paper as [156]

  • Eight genes have been found mutated in dyskeratosis congenita, and every one encodes a telomerase or telomere protein component.

    “Eight mutant genes have been identified in dyskeratosis congenita9,38,39,60–64, and all of them encode telomerase or telomere protein components (summarized in Table 1).”

    From The telomere syndromes (2012) · cites this paper as [62]

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Authors
Savage, S. A., Giri, N., Baerlocher, G. M., Orr, N., Lansdorp, P. M., & Alter, B. P.
Affiliations
  • National Institutes of Health (US)
  • University Hospital of Bern (CH)
  • National Cancer Institute (US)
Corresponding author
Savage, Sharon A.
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2008-02
Volume
82
Issue
2
Pages
501-509
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2033942199
Cited by
414
References
46
Citations by year
2026: 10 · 2025: 16 · 2024: 16 · 2023: 15 · 2022: 15 · 2021: 16 · 2020: 17 · 2019: 17 · 2018: 29 · 2017: 17 · 2016: 17 · 2015: 21 · 2014: 27 · 2013: 29 · 2012: 25
FWCI
28.20
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • BORIS (University Library Bern) (submittedVersion)
  • Research Portal (Queen's University Belfast) (submittedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (N02 CP011019)
  • National Institute of Allergy and Infectious Diseases (AI 29524, R21AI029524, R01AI029524)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Blood disorders and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
TIN2, dyskeratosis congenita, shelterin complex, telomere protection, bone marrow failure, autosomal dominant inheritance, germline mutations, telomere biology
MeSH terms
Adolescent, Adult, Base Sequence, Child, Child, Preschool, Chromosome Mapping, Chromosomes, Human, Pair 14, Humans, Molecular Sequence Data, Mutation, Pedigree, Telomere, Sequence Analysis, DNA, Dyskeratosis Congenita, Telomere-Binding Proteins

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