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Encyclopedia > Histone H1

Histone H1 is one of the 5 main histone proteins involved in the structure of chromatin in eukaryotic cells. Featuring a central globular domain and long C and N terminal tails H1 is involved with the packing of the 'beads on a string' structure into the '30nm solenoid' structure. H1 is present in half the amount of the other four histones. This is because unlike the other histones, H1 does not make up the nucleosome 'bead'. Instead, it sits on top of the structure, keeping in place the DNA that has wrapped around the nucleosome. See nucleosome, histone and chromatin. In biology, histones are the chief proteins of chromatin. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Chromatin is found inside the nucleus of a cell. ... A nucleosome is a unit made of DNA and histones. ... A nucleosome is a unit made of DNA and histones. ... In biology, histones are the chief proteins of chromatin. ... Chromatin is found inside the nucleus of a cell. ...


Other histone proteins involved: H2A H2B H3 H4 In biology, histones are the chief proteins of chromatin. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... H2A (Histone H2A) is one of the 5 main histone proteins involved in the structure of chromatin in eukaryotic cells. ... H2B (Histone H2B) is one of the 5 main histone proteins involved in the structure of chromatin in eukaryotic cells. ... H3 is a pyrotechnic composition consisting of: KClO3 (Potassium Chlorate) - 77 Charcoal - 23 Dextrin +2 It is mostly used as burst charge. ... For the 18th century chronometer, see John Harrison. ...


  Results from FactBites:
 
BioMed Central | Full text | PCR cloning of a histone H1 gene from Anopheles stephensimosquito cells: comparison of ... (3338 words)
Thus, unlike the case with the ubiquitinated ribosomal protein S27a in the rat [5], the histone tail is not removed from the mosquito ribosomal protein prior to ribosome assembly.
When the deduced sequence of the Drosophila histone H1 protein (Accession NM_058232) was compared to the Anopheles gambiae genome using the program BLAST [12] on the NCBI website (National Center for Biotechnology Information; http://www.ncbi.nlm.nih.gov/ webcite), we obtained 5 accessions with E values ranging from 3e-35 to 8e-43, distributed on mosquito chromosomes 2 and 3.
The Drosophila H1 histone was also ~50% identical to that from Chironomus thummi, a fly closely related to mosquitoes in the infraorder/superfamily Culicomorpha [13].
Histone H1° Human, Recombinant, Histones, Intl, NEB (466 words)
Histone H1 acts on the linker region of polynucleosome DNA to condense the chromatin into structures of ~30 nm (1).
Histone H1° is a non replication-dependent histone that is highly expressed in cells that have terminally differentiated (3).
The protein concentration (1 mg/ml, 48 µM) is calculated using the molar extinction coefficient for Histone H1 (3840) and its absorbance at 280 nm (4,5).
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