2fj7

From Proteopedia

(Difference between revisions)

Revision as of 09:54, 5 May 2021

Crystal structure of Nucleosome Core Particle Containing a Poly (dA.dT) Sequence Element

Structural highlights

2fj7 is a 10 chain structure with sequence from African clawed frog. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1aoi, 1kx5
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[H2B11_XENLA] 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. [H4_XENLA] 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 PubMed

Poly(dA.dT) DNA sequence elements are thought to promote transcription by either excluding nucleosomes or by altering their structural or dynamic properties. Here, the stability and structure of a defined nucleosome core particle containing a 16 base-pair poly(dA.dT) element (A16 NCP) was investigated. The A16 NCP requires a significantly higher temperature for histone octamer sliding in vitro compared to comparable nucleosomes that do not contain a poly(dA.dT) element. Fluorescence resonance energy transfer showed that the interactions between the nucleosomal DNA ends and the histone octamer were destabilized in A16 NCP. The crystal structure of A16 NCP was determined to a resolution of 3.2 A. The overall structure was maintained except for local deviations in DNA conformation. These results are consistent with previous in vivo and in vitro observations that poly(dA.dT) elements cause only modest changes in DNA accessibility and modest increases in steady-state transcription levels.

Nucleosome core particles containing a poly(dA.dT) sequence element exhibit a locally distorted DNA structure.,Bao Y, White CL, Luger K J Mol Biol. 2006 Aug 25;361(4):617-24. Epub 2006 Jul 5. PMID:16860337^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Bao Y, White CL, Luger K. Nucleosome core particles containing a poly(dA.dT) sequence element exhibit a locally distorted DNA structure. J Mol Biol. 2006 Aug 25;361(4):617-24. Epub 2006 Jul 5. PMID:16860337 doi:10.1016/j.jmb.2006.06.051

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2fj7"

@@ Line 3: / Line 3: @@
 <StructureSection load='2fj7' size='340' side='right'caption='[[2fj7]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2fj7]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/African_clawed_frog African clawed frog]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FJ7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2FJ7 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2fj7]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/African_clawed_frog African clawed frog]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FJ7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FJ7 FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1aoi|1aoi]], [[1kx5|1kx5]]</td></tr>
+</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1aoi|1aoi]], [[1kx5|1kx5]]</div></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=2fj7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fj7 OCA], [http://pdbe.org/2fj7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2fj7 RCSB], [http://www.ebi.ac.uk/pdbsum/2fj7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2fj7 ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2fj7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fj7 OCA], [https://pdbe.org/2fj7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fj7 RCSB], [https://www.ebi.ac.uk/pdbsum/2fj7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fj7 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/H2B11_XENLA H2B11_XENLA]] 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. [[http://www.uniprot.org/uniprot/H4_XENLA H4_XENLA]] 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.
+[[https://www.uniprot.org/uniprot/H2B11_XENLA H2B11_XENLA]] 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. [[https://www.uniprot.org/uniprot/H4_XENLA H4_XENLA]] 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 ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 30: / Line 30: @@
 ==See Also==
-*[[Histone|Histone]]
+*[[Histone 3D structures|Histone 3D structures]]
 == References ==
 <references/>

2fj7

From Proteopedia

Revision as of 09:54, 5 May 2021

Crystal structure of Nucleosome Core Particle Containing a Poly (dA.dT) Sequence Element

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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