Chromatosome
Encyclopedia
A chromatosome is essentially a nucleosome
with one bound linker histone. See: nucleosome
and chromatin
.
octamer, one molecule of linker histone, for example, Histone H1
and 166bp of DNA. The linker histone is a binding agent, acting like a finger holding down the DNA preventing its release.
Nucleosome
Nucleosomes are the basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound around a histone protein core. This structure is often compared to thread wrapped around a spool....
with one bound linker histone. See: nucleosome
Nucleosome
Nucleosomes are the basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound around a histone protein core. This structure is often compared to thread wrapped around a spool....
and chromatin
Chromatin
Chromatin is the combination of DNA and proteins that make up the contents of the nucleus of a cell. The primary functions of chromatin are; to package DNA into a smaller volume to fit in the cell, to strengthen the DNA to allow mitosis and meiosis and prevent DNA damage, and to control gene...
.
Details
A chromatosome consists of a histoneHistone
In biology, histones are highly alkaline proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes. They are the chief protein components of chromatin, acting as spools around which DNA winds, and play a role in gene regulation...
octamer, one molecule of linker histone, for example, Histone H1
Histone H1
Histone H1 is one of the five main histone protein families which are components of chromatin in eukaryotic cells. Though highly conserved, it is nevertheless the most variable histone in sequence across species.- Structure :...
and 166bp of DNA. The linker histone is a binding agent, acting like a finger holding down the DNA preventing its release.