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Using HEK293T Expression System to Study Photoactive Plant Cryptochromes.

Liang Yang¹, Xu Wang², Weixian Deng¹

¹Laboratory of Soil and Plant Molecular Genetics, College of Plant Science, Jilin UniversityChangchun, China; Basic Forestry and Proteomics Research Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry UniversityFuzhou, China.

Frontiers in Plant Science

|July 23, 2016

Summary

Researchers developed a new method to study plant cryptochromes, which are blue light receptors. This technique allows for the expression of active Arabidopsis cryptochromes in HEK293T cells, enabling further investigation into their photochemical mechanisms.

Keywords:

HEK293T cryptochrome expression system linear DNA photo-biochemical activity

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Area of Science:

Plant biology
Photochemistry
Molecular biology

Background:

Cryptochromes are blue light receptors found in plants and animals.
The photochemical mechanisms of cryptochromes are not well understood.
Studying plant cryptochromes is hindered by the lack of suitable expression systems for active holoproteins.

Purpose of the Study:

To develop an accessible method for expressing and studying Arabidopsis cryptochromes.
To assess the photochemical activity of Arabidopsis cryptochromes expressed in a heterologous system.

Main Methods:

Expression of Arabidopsis cryptochrome in HEK293T cells.
Assessment of photochemical activity.

Main Results:

Arabidopsis cryptochromes expressed in HEK293T cells were found to be photochemically active.
The developed method is easy to use.

Conclusions:

The new expression system facilitates the study of plant cryptochrome photochemistry.
This method can be broadly applied to functional investigations of plant proteins, including large-scale analyses of cryptochrome photochemical activities and blue light-dependent interactions.