Kinetochore-microtubule coupling mechanisms mediated by the Ska1 complex and Cdt1

Amit Rahi, Manas Chakraborty, Kristen Vosberg, Dileep Varma

Research output: Contribution to journalArticlepeer-review

Abstract

The faithful segregation of duplicated sister chromatids rely on the remarkable ability of kinetochores to sustain stable load bearing attachments with the dynamic plus ends of kinetochore-microtubules (kMTs). The outer layer of the kinetochore recruits several motor and non-motor microtubule-associated proteins (MAPs) that help the kinetochores establish and maintain a load bearing dynamic attachment with kMTs. The primary kMT-binding protein, the Ndc80 complex (Ndc80c), which is highly conserved among diverse organisms from yeast to humans, performs this essential function with assistance from other MAPs. These MAPs are not an integral part of the kinetochore, but they localize to the kinetochore periodically throughout mitosis and regulate the strength of the kinetochore microtubule attachments. Here, we attempt to summarize the recent advances that have been made toward furthering our understanding of this co-operation between the Ndc80c and these MAPs, focusing on the spindle and kinetochore-associated 1 (Ska1) complex (Ska1c) and Cdc10-dependent transcript 1 (Cdt1) in humans.

Original languageEnglish (US)
Pages (from-to)337-347
Number of pages11
JournalEssays in Biochemistry
Volume64
Issue number2
DOIs
StatePublished - Sep 4 2020

Keywords

  • Chromosomes
  • Kinetochores
  • MAPs
  • Microtubules
  • Mitosis
  • Ndc80

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology

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