Chemo-optogenetic Protein Translocation System Using a Photoactivatable Self-Localizing Ligand

ACS Chem Biol. 2021 Aug 20;16(8):1557-1565. doi: 10.1021/acschembio.1c00416. Epub 2021 Aug 2.

Abstract

Manipulating subcellular protein localization using light is a powerful approach for controlling signaling processes with high spatiotemporal precision. The most widely used strategy for this is based on light-induced protein heterodimerization. The use of small synthetic molecules that can control the localization of target proteins in response to light without the need for a second protein has several advantages. However, such methods have not been well established. Herein, we present a chemo-optogenetic approach for controlling protein localization using a photoactivatable self-localizing ligand (paSL). We developed a paSL that can recruit tag-fused proteins of interest from the cytoplasm to the plasma membrane within seconds upon light illumination. This paSL-induced protein translocation (paSLIPT) is reversible and enables the spatiotemporal control of signaling processes in living cells, even in a local region. paSLIPT can also be used to implement simultaneous optical stimulation and multiplexed imaging of molecular processes in a single cell, offering an attractive and novel chemo-optogenetic platform for interrogating and engineering dynamic cellular functions.

Publication types

  • Research Support, Non-U.S. Gov't
  • Video-Audio Media

MeSH terms

  • Animals
  • Carbamates / metabolism
  • Carbamates / pharmacology*
  • Carbamates / radiation effects
  • Cell Membrane / metabolism
  • Cysteine / analogs & derivatives
  • Cysteine / metabolism
  • Cysteine / pharmacology
  • Cysteine / radiation effects
  • HeLa Cells
  • Humans
  • Ligands
  • Light
  • Mice
  • NIH 3T3 Cells
  • Optogenetics / methods
  • Protein Transport / drug effects*
  • Tetrahydrofolate Dehydrogenase / metabolism*
  • Trimethoprim / analogs & derivatives*
  • Trimethoprim / metabolism
  • Trimethoprim / pharmacology*
  • Trimethoprim / radiation effects

Substances

  • Carbamates
  • Ligands
  • Trimethoprim
  • Tetrahydrofolate Dehydrogenase
  • Cysteine