{
  "id": 5270546,
  "title": "A Sequential Assembly Mechanism for Stable Cdc13 Dimerization on Telomeric DNA",
  "url": "https://urgent.news/2026/09/02/a-sequential-assembly-mechanism-for-stable-cdc13-dimerization-on",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-02T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.09.01.748474v1?rss=1"
  },
  "original_language": "en",
  "account": "The telomere-binding protein Cdc13 plays a crucial role in protecting and regulating telomere length. Through single-molecule studies using smFRET and CoSMoS techniques, researchers have uncovered the dynamic mechanism behind Cdc13's loading onto telomeres. The findings reveal that Cdc13 initially binds to telomeric DNA as a single monomer. Following this, a second monomer is recruited, resulting in the formation of a stable Cdc13 dimer on a 12-nucleotide telomeric DNA segment. While genetic evidence suggests that monomeric Cdc13 binding alone is not sufficient to maintain telomere length, it emphasizes the importance of monomeric Cdc13 in regulating telomere synthesis and protection. The transition from monomer to dimer provides insight into the multifaceted roles of Cdc13 in telomere replication and preservation.",
  "summary": "The telomere-binding protein Cdc13 specifically binds to single-stranded telomeric DNA, playing a critical role in telomere protection and length regulation. While extensive biochemical, molecular biological, and genetic studies have shown that Cdc13 can form dimers or oligomers in solution and bind telomeric DNA with high specificity, the dynamic mechanism of its loading onto telomeres is less…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}