Spatiotemporal regulation of CENP-E-guided chromosomes using a fast-relaxing arylazopyrazole photoswitch

Chem Commun (Camb). 2024 Jun 25;60(52):6611-6614. doi: 10.1039/d4cc01922a.

Abstract

We developed a centromere-associated protein E (CENP-E) inhibitor employing trans to cis photoisomerization with 405 nm visible light illumination and fast thermal relaxation. This photoswitching characteristic of the inhibitor enabled selective blockage or release of the motion of particular chromosomes within a single mitotic cell. Using this technique, we successfully demonstrated targeted chromosome gain and loss in daughter cells by introducing asymmetric chromosome segregation.

MeSH terms

  • Azo Compounds / chemistry
  • Azo Compounds / pharmacology
  • Chromosomal Proteins, Non-Histone* / chemistry
  • Chromosomal Proteins, Non-Histone* / metabolism
  • Chromosome Segregation / drug effects
  • HeLa Cells
  • Humans
  • Light*
  • Molecular Structure
  • Photochemical Processes

Substances

  • Chromosomal Proteins, Non-Histone
  • centromere protein E
  • Azo Compounds