8thu
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Catalytic and non-catalytic mechanisms of histone H4 lysine 20 methyltransferase SUV420H1
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Structural highlights
FunctionH2AZ_HUMAN Variant histone H2A which replaces conventional H2A in a subset of nucleosomes. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. May be involved in the formation of constitutive heterochromatin. May be required for chromosome segregation during cell division.[1] References
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This page was last modified 06:28, 6 September 2023.