TelFinder

TelFinder identifies telomeric motif sequences de novo from genomic datasets to detect tandem repeats at chromosome ends and support studies of telomere composition and evolution.


Key Features:

  • De novo detection: Identifies telomeric motif sequences without prior knowledge of species-specific telomeric repeats.
  • Tandem repeat identification: Detects tandemly repeated sequences characteristic of telomeres at chromosome ends.
  • Cross-species detection: Applies to genomic datasets from diverse species to discover previously uncharacterized telomeric motifs.
  • Variation analysis: Performs variation analyses of telomere motif sequences across chromosomes and chromosome ends.
  • Validation against Telomerase Database: Achieved a 90% detection rate when tested against known telomeric sequences from the Telomerase Database.
  • Complex motif detection: Capable of identifying complex telomeric motifs within genomic data.

Scientific Applications:

  • Telomere composition and evolution: Enables analysis of telomere sequence composition and investigation of divergent telomeric evolution.
  • Aging and senescence studies: Supports research into cellular senescence and telomere-associated mechanisms of aging.
  • Cancer research: Facilitates examination of telomere dynamics relevant to cancer and chromosome stability.
  • Comparative genomics: Supports comparative analysis of telomeric motifs across multiple chromosomes and species.

Methodology:

Analyzes genomic datasets to identify telomeric motifs de novo; performs variation analyses of telomere sequences across chromosomes and chromosome ends; validated by testing against known telomeric sequences from the Telomerase Database with a reported 90% detection rate.

Topics

Details

License:
CC-BY-4.0
Cost:
Free of charge
Tool Type:
command-line tool
Operating Systems:
Mac, Linux, Windows
Programming Languages:
Python
Added:
8/7/2023
Last Updated:
11/24/2024

Operations

Data Inputs & Outputs

Sequence motif comparison

Publications

Sun Q, Wang H, Tao S, Xi X. Large-Scale Detection of Telomeric Motif Sequences in Genomic Data Using TelFinder. Microbiology Spectrum. 2023;11(2). doi:10.1128/spectrum.03928-22. PMID:36847562. PMCID:PMC10100673.

PMID: 36847562
Funding: - National Natural Science Foundation of China: 31870788, 32071225, 32071291 - 陕西省科学技术厅 | Natural Science Basic Research Program of Shaanxi Province: 2020JQ-251 - Centre National de la Recherche Scientifique: Helicase-mediated G-quadruplex DNA unwinding and genome stability