1hio: Difference between revisions
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==HISTONE OCTAMER (CHICKEN), CHROMOSOMAL PROTEIN, ALPHA CARBONS ONLY== | ==HISTONE OCTAMER (CHICKEN), CHROMOSOMAL PROTEIN, ALPHA CARBONS ONLY== | ||
<StructureSection load='1hio' size='340' side='right' caption='[[1hio]], [[Resolution|resolution]] 3.10Å' scene=''> | <StructureSection load='1hio' size='340' side='right' caption='[[1hio]], [[Resolution|resolution]] 3.10Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1hio]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[1hio]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HIO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1HIO FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1hio FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hio OCA], [http://pdbe.org/1hio PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1hio RCSB], [http://www.ebi.ac.uk/pdbsum/1hio PDBsum]</span></td></tr> | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1hio FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hio OCA], [http://pdbe.org/1hio PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1hio RCSB], [http://www.ebi.ac.uk/pdbsum/1hio PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1hio ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hi/1hio_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hi/1hio_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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==See Also== | ==See Also== | ||
*[[User:Luca Toldo|User:Luca Toldo]] | *[[User:Luca Toldo|User:Luca Toldo]] | ||
== References == | == References == | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Gallus gallus]] | ||
[[Category: Arents, G]] | [[Category: Arents, G]] | ||
[[Category: Moudrianakis, E N]] | [[Category: Moudrianakis, E N]] | ||
Revision as of 12:35, 10 January 2018
HISTONE OCTAMER (CHICKEN), CHROMOSOMAL PROTEIN, ALPHA CARBONS ONLYHISTONE OCTAMER (CHICKEN), CHROMOSOMAL PROTEIN, ALPHA CARBONS ONLY
Structural highlights
Function[H4_CHICK] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. [H2A4_CHICK] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. [H32_CHICK] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe structure of the octameric histone core of the nucleosome has been determined by x-ray crystallography to a resolution of 3.1 A. The histone octamer is a tripartite assembly in which a centrally located (H3-H4)2 tetramer is flanked by two H2A-H2B dimers. It has a complex outer surface; depending on the perspective, the structure appears as a wedge or as a flat disk. The disk represents the planar projection of a left-handed proteinaceous superhelix with approximately 28 A pitch. The diameter of the particle is 65 A and the length is 60 A at its maximum and approximately 10 A at its minimum extension; these dimensions are in agreement with those reported earlier by Klug et al. [Klug, A., Rhodes, D., Smith, J., Finch, J. T. & Thomas, J. O. (1980) Nature (London) 287, 509-516]. The folded histone chains are elongated rather than globular and are assembled in a characteristic "handshake" motif. The individual polypeptides share a common central structural element of the helix-loop-helix type, which we name the histone fold. The nucleosomal core histone octamer at 3.1 A resolution: a tripartite protein assembly and a left-handed superhelix.,Arents G, Burlingame RW, Wang BC, Love WE, Moudrianakis EN Proc Natl Acad Sci U S A. 1991 Nov 15;88(22):10148-52. PMID:1946434[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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