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Sequential Salt Extractions for the Analysis of Bulk Chromatin Binding Properties of Chromatin Modifying Complexes

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Spotlight on Plant Bromodomain Proteins.

Eirini Bardani^1,2, Paraskevi Kallemi¹, Martha Tselika¹

¹Department of Biology, University of Crete, Voutes University Campus, 71500 Heraklion, Greece.

|August 26, 2023

Summary

Bromodomain-containing proteins (BRD-proteins) are key regulators of gene expression in plants. This review consolidates knowledge on plant BRD-proteins, highlighting their essential roles in development and stress responses.

Keywords:

BET SANT SWI/SNF acetylation acetyltransferase chromatin-remodeling histone

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Area of Science:

Molecular Biology
Genetics
Plant Science

Background:

Bromodomain-containing proteins (BRD-proteins) are crucial epigenetic readers that interpret histone acetylation marks.
While extensively studied in humans as drug targets, plant BRD-proteins remain less understood.
BRD-proteins regulate gene expression through various mechanisms, including chromatin remodeling and transcriptional regulation.

Purpose of the Study:

To consolidate current scientific knowledge on plant bromodomain-containing proteins, with a specific focus on Arabidopsis.
To organize plant BRD-proteins based on functional and domain architecture.
To summarize existing research on their interactions, activities, and diverse biological functions.

Main Methods:

Literature review and synthesis of published research on plant BRD-proteins.
Classification of plant BRD-proteins into functional groups.
Analysis of domain architecture and known interactions.

Main Results:

Plant BRD-proteins are organized into distinct functional groups based on their domain composition.
Published data reveal diverse roles in regulating plant development, flowering time, hormone signaling, and stress responses.
Interactions and specific functions are increasingly being elucidated, though many remain to be discovered.

Conclusions:

Plant BRD-proteins are essential components that fine-tune complex regulatory networks.
They play indispensable roles in plant growth, development, and adaptation to environmental cues.
Further investigation is needed to uncover the full spectrum of BRD-protein functions in plants.