Histone - Wikipedia

Histones are highly basic proteins that package DNA into nucleosomes in eukaryotic cell nuclei and some Archaea. Learn about the five families of histones, their chemical modifications, their roles in gene regulation and DNA replication, and their variants and pseudogenes.

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Histone | Description, Chromatin, Structure, Functions, & Facts ...

histone, type of protein that plays a critical role in the structural organization and regulation of DNA within the nucleus of eukaryotic cells. Histones were discovered in avian red blood cell nuclei by German biochemist Albrecht Kossel about 1884.. Histones are water-soluble and contain large amounts of basic amino acids, particularly lysine and arginine.

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Histone - National Human Genome Research Institute

Histone is a protein that provides structural support for a chromosome and regulates gene expression. Learn how histones wrap DNA, form nucleosomes, and have different marks that indicate gene activity.

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Histones types and its functions - Microbiology Notes

Nucleosome consists of DNA wrapped around 8 histone protein called histone octamer. Both DNA and histone are packed all together to form nucleosome, nucleosome are a pack which are called chromatin, 2 chromatin forms a chromosomes. Types of Histone:-Histone protein are of 2 types. Core histone; Linker histone; Core histone- H2A, H2B, H3 & H4

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組織蛋白 - 維基百科,自由的百科全書

組織蛋白(英語: histone ,或稱組織蛋白)是真核生物 體細胞 染色質與原核細胞中的鹼性蛋白質,和DNA共同組成核小體結構 [1] [2] [3] 。 它們是 染色質 的主要蛋白質體分,作為DNA纏繞的線軸,並在 基因調控 中發揮作用,但是原核細胞組織蛋白對基因調控的作用非常微弱 [ 3 ] 。

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组蛋白 - 百度百科

在生物学中,组蛋白(histone)是一类富含赖氨酸和精氨酸残基的高度碱性蛋白质,这些蛋白质主要存在于真核细胞的细胞核中,以及在大多数古菌域中也有发现。组蛋白作为DNA的“卷轴”,DNA会围绕组蛋白形成螺旋状的结构,这种结构被称为核小体(nucleosomes)。核小体进而被包裹进30纳米的纤维中 ...

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histone / histones | Learn Science at Scitable - Nature

Each histone octamer is composed of two copies each of the histone proteins H2A, H2B, H3, and H4. The chain of nucleosomes is then wrapped into a 30 nm spiral called a solenoid, ...

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Histone Variants and Epigenetics - PMC - PubMed Central (PMC)

Variants have also evolved crucial roles in chromosome segregation, transcriptional regulation, DNA repair, and other processes. Investigations into the evolution, structure, and metabolism of histone variants provide a foundation for understanding the participation of chromatin in important cellular processes and in epigenetic memory.

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Histone - an overview | ScienceDirect Topics

Learn about histone, a basic protein in chromatin structure, and its post-translational modification, histone acetylation. Compare different methods for histone acetyltransferase detection with various performances and applications.

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Regulation of chromatin by histone modifications | Cell Research - Nature

Like histone acetylation, the phosphorylation of histones is highly dynamic. It takes place on serines, threonines and tyrosines, predominantly, but not exclusively, in the N-terminal histone tails 3.

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Histone

Histones are highly basic proteins that package DNA into nucleosomes in eukaryotic cell nuclei and some Archaea. Learn about the five families of histones, their chemical modifications, their roles in gene regulation and DNA replication, and their variants and pseudogenes.

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