Histone octamer

Histone octamer

A histone octamer is an octamer of the histones found at the center of a nucleosome core particle. It consists of 2 copies of each of the four core histone proteins (H2A, H2B, H3 and H4). The octamer assembles when a tetramer, containing two copies of both H3 and H4, complexes with two H2A/H2B dimers. These histones of the histone octamer all contain N-terminal tails that emanate from their central histone folds, and core domains with the C-terminals. The core domains are hydrophobic.

ee also

* Nucleosome
* Histone
* Chromatin


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Histone fold — A histone fold is a fold found near the C terminus of each type histone in a histone octamer. The core histones share a structurally conserved motif, the histone fold, averaging about 70 amino acids. The histone fold consists of three alpha… …   Wikipedia

  • Histone H2B type 1-C — Histone cluster 1, H2bc, also known as HIST1H2BC, is a human gene.cite web | title = Entrez Gene: HIST1H2BC histone cluster 1, H2bc| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=8347| accessdate = ] PBB… …   Wikipedia

  • Histone-Modifying Enzymes — The packaging of the eukaryotic genome into highly condensed chromatin makes it inaccessible to the factors required for gene transcription, DNA replication, recombination and repair. Eukaryotes have developed intricate mechanisms to overcome… …   Wikipedia

  • octamer — (1) Eight base sequence motif common in eukaryotic promoters. Consensus is ATTTGCAT; binds various transcription factors. (2) Assembly of eight histone proteins (2 each of H2A, H2B, H3 and H4) that forms core of nucleosome …   Dictionary of molecular biology

  • HIST3H3 — Histone cluster 3, H3, also known as HIST3H3, is a human gene. PBB Summary section title = summary text = Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes… …   Wikipedia

  • HIST1H2AE — Histone cluster 1, H2ae, also known as HIST1H2AE, is a human gene.cite web | title = Entrez Gene: HIST1H2AE histone cluster 1, H2ae| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=3012| accessdate = ] PBB… …   Wikipedia

  • HIST1H2BD — Histone cluster 1, H2bd, also known as HIST1H2BD, is a human gene.cite web | title = Entrez Gene: HIST1H2BD histone cluster 1, H2bd| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=3017| accessdate = ] PBB… …   Wikipedia

  • HIST1H2BB — Histone cluster 1, H2bb, also known as HIST1H2BB, is a human gene.cite web | title = Entrez Gene: HIST1H2BB histone cluster 1, H2bb| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=3018| accessdate = ] PBB… …   Wikipedia

  • HIST4H4 — Histone cluster 4, H4, also known as HIST4H4, is a human gene. PBB Summary section title = summary text = Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes… …   Wikipedia

  • HIST1H2BG — Histone cluster 1, H2bg, also known as HIST1H2BG, is a human gene.cite web | title = Entrez Gene: HIST1H2BG histone cluster 1, H2bg| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=8339| accessdate = ] PBB… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”