Sandbox GGC1: Difference between revisions
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The Variant [https://www.uniprot.org/uniprot/P84243 histone H3] replaces H3 in a range of nucleosomes in active genes. Deposited at sites of nucleosomal displacement throughout transcribed genes, suggesting that it represents an epigenetic imprint of transcriptionally active chromatin. 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 | The Variant [https://www.uniprot.org/uniprot/P84243 histone H3] replaces H3 in a range of nucleosomes in active genes. Deposited at sites of nucleosomal displacement throughout transcribed genes, suggesting that it represents an epigenetic imprint of transcriptionally active chromatin. 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 | ||
== Disease == | == Disease == | ||
There are mutations in H3.3 that are found in different types of bone tumors like [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446520/ chrondroblastoma] for example and giant cell tumors of the bone [https://cancerdiscovery.aacrjournals.org/content/3/12/1329.1 Chondroblastoma] arises in children and in young adults in the cartilage of the growth plates of the long bones and is most typically benign. | There are mutations in H3.3 that are found in different types of bone tumors like [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446520/ chrondroblastoma] for example and giant cell tumors of the bone. [https://cancerdiscovery.aacrjournals.org/content/3/12/1329.1 Chondroblastoma] arises in children and in young adults in the cartilage of the growth plates of the long bones and is most typically benign. | ||
== Relevance == | == Relevance == | ||
Histone octamer containing two of H2A, H2B, H3 and H4 and the octamer wraps 147bp of DNA. H3.3 interacts with HIRA which is a chaperone and ZMYND11 when trimethylated at <scene name='75/752263/3wtp/2'>Lysine-36</scene> | Histone octamer containing two of H2A, H2B, H3 and H4 and the octamer wraps 147bp of DNA. H3.3 interacts with HIRA which is a chaperone and ZMYND11 when trimethylated at <scene name='75/752263/3wtp/2'>Lysine-36</scene> | ||