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== Function ==
== Function ==
[https://www.uniprot.org/uniprot/SP16H_HUMAN SP16H_HUMAN] Component of the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication and DNA repair. During transcription elongation the FACT complex acts as a histone chaperone that both destabilizes and restores nucleosomal structure. It facilitates the passage of RNA polymerase II and transcription by promoting the dissociation of one histone H2A-H2B dimer from the nucleosome, then subsequently promotes the reestablishment of the nucleosome following the passage of RNA polymerase II. The FACT complex is probably also involved in phosphorylation of 'Ser-392' of p53/TP53 via its association with CK2 (casein kinase II).<ref>PMID:10912001</ref> <ref>PMID:11239457</ref> <ref>PMID:12934006</ref> <ref>PMID:16713563</ref> <ref>PMID:9489704</ref> <ref>PMID:9836642</ref>
[https://www.uniprot.org/uniprot/H2B1B_HUMAN H2B1B_HUMAN] Core component of nucleosome. 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.[https://www.uniprot.org/uniprot/H2A1D_HUMAN H2A1D_HUMAN] Core component of nucleosome. 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.
== References ==
<references/>
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</StructureSection>
</StructureSection>

Latest revision as of 07:03, 19 June 2024

Structure of human SPT16 MD-CTD and MCM2 HBD chaperoning a histone H3-H4 tetramer and a single chain H2B-H2A chimera

8yjm, resolution 4.15Å

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