One of the basic proteins found in nucleosomes, the basic building blocks of chromatin.

A family of small, highly conserved basic proteins, found in the chromatin of all eukaryotic cells, that associate with DNA in the nucleosome. The five major types are H1, H2A, H2B, H3, and H4 histone. Histone-like proteins also are present in some prokaryotes.

One of a group of small abundant proteins, rich in arginine and lysine, that are associated with DNA in eucaryotic chromosomes.

( hiss-tone) A small protein with a high proportion of positively charged amino acids that binds to the negatively charged DNA and plays a key role in its chromatin structure.

any of various simple water-soluble proteins that are rich in the basic amino acids lysine and arginine and are complexed with DNA in the nucleosomes of eukaryotic chromatin

Abundant small protein rich in arginine and lysine that associates with DNA and enables the packaging of DNA into chromosomes.

a simple protein containing mainly basic amino acids; present in cell nuclei in association with nucleic acids

Group of water-soluble proteins rich in basic amino acids, closely associated with DNA in plant and animal chromatin. Histones are involved in the coiling of DNA in chromosomes and in the regulation of gene activity.

A type of basic protein that forms a unit around which DNA is tightly coiled in the nucleosomes of eukaryotic chromosomes.

Protein in the nuclei of eukaryotic cells that modify DNA for replication.

Any one of a group of basic proteins forming the core of a nucleosome, the structural unit of a eukaryotic chromosome. (See nucleosome.)

a type of protein found in chromosomes. Histones bind to DNA, help give chromosomes their shape, and help control the activity of genes.

A simple protein containing many basic groups occurring in the nucleus of most higher organisms.

Any of five related proteins, composed primarily of basic amino acids, which are the scaffold around which DNA is wound to form the chromatin structure of eukaryotic chromosomes

A basic protein that interacts stronglywith DNA; it aids the formation ofnucleosomes in nuclei of eukaryotic cells.

a basic protein associated with nucleic acids. Histones are important parts of the DNA control system, suppressing the expression of or causing the expression of specific parts of the DNA blueprints in conjunction with other nucleoproteins.

Type of protein rich in lysine and arginine found in association with DNA in chromosomes.

In biology, histones are the chief proteins of chromatin. They act as spools around which DNA winds and they play a role in gene regulation.