» Articles » PMID: 38755561

Characterization of Telomere Variant Repeats Using Long Reads Enables Allele-specific Telomere Length Estimation

Overview
Publisher Biomed Central
Specialty Biology
Date 2024 May 16
PMID 38755561
Authors
Affiliations
Soon will be listed here.
Abstract

Telomeres are regions of repetitive DNA at the ends of linear chromosomes which protect chromosome ends from degradation. Telomere lengths have been extensively studied in the context of aging and disease, though most studies use average telomere lengths which are of limited utility. We present a method for identifying all 92 telomere alleles from long read sequencing data. Individual telomeres are identified using variant repeats proximal to telomere regions, which are unique across alleles. This high-throughput and high-resolution characterization of telomeres could be foundational to future studies investigating the roles of specific telomeres in aging and disease.

Citing Articles

Insights into the length and breadth of methodologies harnessed to study human telomeres.

Coulter T, Hill C, McKnight A Biomark Res. 2024; 12(1):127.

PMID: 39438947 PMC: 11515763. DOI: 10.1186/s40364-024-00668-9.


Atlas of telomeric repeat diversity in Arabidopsis thaliana.

Tao Y, Xian W, Bao Z, Rabanal F, Movilli A, Lanz C Genome Biol. 2024; 25(1):244.

PMID: 39285474 PMC: 11406999. DOI: 10.1186/s13059-024-03388-3.

References
1.
Lansdorp P . Telomeres, aging, and cancer: the big picture. Blood. 2022; 139(6):813-821. PMC: 8832478. DOI: 10.1182/blood.2021014299. View

2.
Vera E, Blasco M . Beyond average: potential for measurement of short telomeres. Aging (Albany NY). 2012; 4(6):379-92. PMC: 3409675. DOI: 10.18632/aging.100462. View

3.
Lee M, Teber E, Holmes O, Nones K, Patch A, Dagg R . Telomere sequence content can be used to determine ALT activity in tumours. Nucleic Acids Res. 2018; 46(10):4903-4918. PMC: 6007693. DOI: 10.1093/nar/gky297. View

4.
Dejardin J, Kingston R . Purification of proteins associated with specific genomic Loci. Cell. 2009; 136(1):175-86. PMC: 3395431. DOI: 10.1016/j.cell.2008.11.045. View

5.
Riethman H, Ambrosini A, Castaneda C, Finklestein J, Hu X, Mudunuri U . Mapping and initial analysis of human subtelomeric sequence assemblies. Genome Res. 2004; 14(1):18-28. PMC: 314271. DOI: 10.1101/gr.1245004. View