What are histone?

Anonymous

∙ 7y ago

Updated: 9/7/2021

HistonesHistones are proteins that aid in the organization of DNA into chromosomes. There are four types of histones found in chromatin: H2A, H2B, H3, and H4. Two of each histone comprise a protein core, a nucleosome, which DNA wraps around twice. What results is a "bead on a string" model in which the nucleosomes are the beads and the linker DNA binds them together. Another characteristic of histones are the protein tails that extend outward from the "bead." The tails and the degree of their acetylation is an important factor in gene expression.

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Viva Kub ∙

Lvl 10

∙ 4y ago

What else can I help you with?

What is histone mRNA?

Histone mRNA is a type of messenger RNA (mRNA) that carries the genetic information for the synthesis of histone proteins. Unlike typical mRNAs, histone mRNAs lack a poly-A tail and are rapidly degraded after histone protein synthesis is complete. They play a crucial role in packaging DNA into chromatin structure.

What are the sources of histone binding protein RbAp48?

what are the sources of histone binding protien RbAp48

How many different types of histone subunits are present in a nucleosome?

the number of histone subunits in a nucleosome is?

What are nonhistones?

histone are nonprotienous

Does ATP contain histone?

No, it does not.

What are the key findings and insights from the latest histone modifications review?

The latest review on histone modifications highlights key findings such as the role of histone modifications in gene regulation, chromatin structure, and cellular processes. Insights include the impact of histone modifications on disease development and potential therapeutic targets.

What is DNA wrapped around in a nucleosome?

They're called histone proteins. There are 8histones proteins in which a loop of DNA wraps around twice. Then another histone protein called the H1 linker binds them together.

What is composed of DNA and proteins?

Chromatin is composed of DNA and histone proteins. Histone proteins help package and condense DNA into a complex structure that fits within the nucleus of a cell.

What is histone core?

A Histone Core is a group of Histone Proteins, mainly used in eukaryotes to package DNA strands into Nucleosomes. (Think of it like a spool for the DNA to wrap around, to be easily stored on a shelf)

What do chromosomes use histone proteins for?

Chromosomes, as a thread, use histone protein cores as spools that they use to wrap around and, hence, condense.

Histone-DNA units are called?

nucleosomes

Histone dna units are called?

Nucleosomes

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