1h0x
From Proteopedia
(Difference between revisions)
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<StructureSection load='1h0x' size='340' side='right'caption='[[1h0x]], [[Resolution|resolution]] 2.60Å' scene=''> | <StructureSection load='1h0x' size='340' side='right'caption='[[1h0x]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1h0x]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H0X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H0X FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1h0x]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H0X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1H0X FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</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=1h0x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h0x OCA], [https://pdbe.org/1h0x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h0x RCSB], [https://www.ebi.ac.uk/pdbsum/1h0x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h0x 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=1h0x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h0x OCA], [https://pdbe.org/1h0x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1h0x RCSB], [https://www.ebi.ac.uk/pdbsum/1h0x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1h0x ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/ALBA1_SACS2 ALBA1_SACS2] Binds double-stranded DNA tightly but without sequence specificity. It is distributed uniformly and abundantly on the chromosome, suggesting a role in chromatin architecture. May be involved in DNA compaction. May bind rRNA and mRNA, playing a role in maintaining the structural and functional stability of RNA, and, perhaps, ribosomes. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1h0x ConSurf]. | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1h0x ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Eukaryotic DNA is packaged into nucleosomes that regulate the accessibility of the genome to replication, transcription and repair factors. Chromatin accessibility is controlled by histone modifications including acetylation and methylation. Archaea possess eukary otic-like machineries for DNA replication, transcription and information processing. The conserved archaeal DNA binding protein Alba (formerly Sso10b) interacts with the silencing protein Sir2, which regulates Alba's DNA binding affinity by deacetylation of a lysine residue. We present the crystal structure of Alba from Sulfolobus solfataricus at 2.6 A resolution (PDB code 1h0x). The fold is reminiscent of the N-terminal DNA binding domain of DNase I and the C-terminal domain of initiation factor IF3. The Alba dimer has two extended beta-hairpins flanking a central body containing the acetylated lysine, Lys16, suggesting three main points of contact with the DNA. Fluorescence, calorimetry and electrophoresis data suggest a final binding stoichiometry of approximately 5 bp DNA per Alba dimer. We present a model for the Alba-DNA interaction consistent with the available structural, biophysical and electron microscopy data. | ||
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| - | Structure of Alba: an archaeal chromatin protein modulated by acetylation.,Wardleworth BN, Russell RJ, Bell SD, Taylor GL, White MF EMBO J. 2002 Sep 2;21(17):4654-62. PMID:12198167<ref>PMID:12198167</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1h0x" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: | + | [[Category: Saccharolobus solfataricus]] |
| - | [[Category: | + | [[Category: Bell SD]] |
| - | [[Category: | + | [[Category: Russell RJM]] |
| - | [[Category: | + | [[Category: Taylor GL]] |
| - | [[Category: | + | [[Category: Wardleworth BN]] |
| - | [[Category: | + | [[Category: White MF]] |
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Revision as of 11:26, 27 March 2024
Structure of Alba: an archaeal chromatin protein modulated by acetylation
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