Plant Histone HTB (H2B) Variants in Regulating Chromatin Structure and Function

Overview

Journal Plants (Basel)

Date 2020 Oct 29

PMID 33113795

Citations 7

Authors

Janardan Khadka

Anat Pesok

Gideon Grafi

Affiliations

Soon will be listed here.

Abstract

Besides chemical modification of histone proteins, chromatin dynamics can be modulated by histone variants. Most organisms possess multiple genes encoding for core histone proteins, which are highly similar in amino acid sequence. The genome contains 11 genes encoding for histone H2B (HTBs), 13 for H2A (HTAs), 15 for H3 (HTRs), and 8 genes encoding for histone H4 (HFOs). The finding that histone variants may be expressed in specific tissues and/or during specific developmental stages, often displaying specific nuclear localization and involvement in specific nuclear processes suggests that histone variants have evolved to carry out specific functions in regulating chromatin structure and function and might be important for better understanding of growth and development and particularly the response to stress. In this review, we will elaborate on a group of core histone proteins in , namely histone H2B, summarize existing data, and illuminate the potential function of H2B variants in regulating chromatin structure and function in .

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