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Related Experiment Video

Updated: Apr 15, 2026

Building a Simple and Versatile Illumination System for Optogenetic Experiments

Building a Simple and Versatile Illumination System for Optogenetic Experiments

Published on: January 12, 2021

Optical control of biological processes by light-switchable proteins.

Linlin Z Fan¹, Michael Z Lin^1,2

¹Department of Bioengineering, Stanford University, Stanford, CA, USA.

Wiley Interdisciplinary Reviews. Developmental Biology

|April 11, 2015

Summary

Optogenetic tools use light to precisely control protein activity in cells. This review covers light-sensitive proteins for modulating cellular signaling and advancing biological understanding.

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Last Updated: Apr 15, 2026

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Area of Science:

Cellular Biology
Biotechnology
Molecular Engineering

Background:

Cellular functions like proliferation and migration require precise spatiotemporal protein activity.
Understanding cellular behavior necessitates experimental methods for spatial and temporal control of protein activity.

Purpose of the Study:

To review optogenetic methods for spatiotemporal control of protein activity.
To discuss applications of light-sensitive proteins in modulating cellular signaling pathways.

Main Methods:

Engineering of light-sensitive protein domains as optogenetic actuators.
Application of these actuators to modulate protein activity with light.

Main Results:

Optogenetic actuators enable precise spatiotemporal control of protein activity.
Light-controllable proteins offer tunable dynamics and quantitative control over cellular processes.

Conclusions:

Optogenetic tools significantly enhance the ability to study cellular mechanisms.
Light-controllable proteins are powerful for accelerating biological discoveries and understanding complex cellular behaviors.