1azq

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{{Seed}}
 
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[[Image:1azq.png|left|200px]]
 
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==HYPERTHERMOPHILE CHROMOSOMAL PROTEIN SAC7D BOUND WITH KINKED DNA DUPLEX==
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The line below this paragraph, containing "STRUCTURE_1azq", creates the "Structure Box" on the page.
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<StructureSection load='1azq' size='340' side='right'caption='[[1azq]], [[Resolution|resolution]] 1.94&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1azq]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Sulfolobus_acidocaldarius Sulfolobus acidocaldarius]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AZQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1AZQ FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.94&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1azq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1azq OCA], [https://pdbe.org/1azq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1azq RCSB], [https://www.ebi.ac.uk/pdbsum/1azq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1azq ProSAT]</span></td></tr>
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{{STRUCTURE_1azq| PDB=1azq | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/DN7D_SULAC DN7D_SULAC] Can constrain negative DNA supercoils. May be involved in maintaining the integrity of the genome at high temperature.[UniProtKB:P61990]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The proteins Sac7d and Sso7d belong to a class of small chromosomal proteins from the hyperthermophilic archaeon Sulfolobus acidocaldarius and S. solfactaricus, respectively. These proteins are extremely stable to heat, acid and chemical agents. Sac7d binds to DNA without any particular sequence preference and thereby increases its melting temperature by approximately 40 degrees C. We have now solved and refined the crystal structure of Sac7d in complex with two DNA sequences to high resolution. The structures are examples of a nonspecific DNA-binding protein bound to DNA, and reveal that Sac7d binds in the minor groove, causing a sharp kinking of the DNA helix that is more marked than that induced by any sequence-specific DNA-binding proteins. The kink results from the intercalation of specific hydrophobic side chains of Sac7d into the DNA structure, but without causing any significant distortion of the protein structure relative to the uncomplexed protein in solution.
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===HYPERTHERMOPHILE CHROMOSOMAL PROTEIN SAC7D BOUND WITH KINKED DNA DUPLEX===
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The hyperthermophile chromosomal protein Sac7d sharply kinks DNA.,Robinson H, Gao YG, McCrary BS, Edmondson SP, Shriver JW, Wang AH Nature. 1998 Mar 12;392(6672):202-5. PMID:9515968<ref>PMID:9515968</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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The line below this paragraph, {{ABSTRACT_PUBMED_9515968}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1azq" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 9515968 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_9515968}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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1AZQ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sulfolobus_acidocaldarius Sulfolobus acidocaldarius]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AZQ OCA].
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==Reference==
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The hyperthermophile chromosomal protein Sac7d sharply kinks DNA., Robinson H, Gao YG, McCrary BS, Edmondson SP, Shriver JW, Wang AH, Nature. 1998 Mar 12;392(6672):202-5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9515968 9515968]
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[[Category: Single protein]]
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[[Category: Sulfolobus acidocaldarius]]
[[Category: Sulfolobus acidocaldarius]]
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[[Category: Edmondson, S P.]]
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[[Category: Edmondson SP]]
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[[Category: Gao, Y G.]]
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[[Category: Gao Y-G]]
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[[Category: Mccrary, B S.]]
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[[Category: Mccrary BS]]
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[[Category: Robinson, H.]]
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[[Category: Robinson H]]
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[[Category: Shriver, J W.]]
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[[Category: Shriver JW]]
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[[Category: Wang, A H.J.]]
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[[Category: Wang AH-J]]
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[[Category: Archea]]
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[[Category: Dna-binding]]
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[[Category: Intercalation]]
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[[Category: Kinked-dna]]
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[[Category: Minor-groove binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 17:55:47 2008''
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Current revision

HYPERTHERMOPHILE CHROMOSOMAL PROTEIN SAC7D BOUND WITH KINKED DNA DUPLEX

PDB ID 1azq

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