190d: Difference between revisions

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New page: left|200px<br /><applet load="190d" size="450" color="white" frame="true" align="right" spinBox="true" caption="190d, resolution 1.800Å" /> '''CRYSTAL STRUCTURE O...
 
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[[Image:190d.gif|left|200px]]<br /><applet load="190d" size="450" color="white" frame="true" align="right" spinBox="true"
caption="190d, resolution 1.800&Aring;" />
'''CRYSTAL STRUCTURE OF A FOUR-STRANDED INTERCALATED DNA: D(C4)'''<br />


==Overview==
==Crystal structure of a four-stranded intercalated DNA: d(C4)==
The crystal structure of d(C4) solved at 2.3-A resolution reveals a, four-stranded molecule composed of two interdigitated or intercalated, duplexes. The duplexes are held together by hemiprotonated, cytosine-cytosine base pairs and are parallel stranded, but the two, duplexes point in opposite directions. The molecule has a slow, right-handed twist of 12.4 degrees between covalently linked cytosine base, pairs, and the base stacking distance is 3.1 A. This is in general, agreement with the NMR studies. A biological role for DNA in this, conformation is suggested.
<StructureSection load='190d' size='340' side='right'caption='[[190d]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[190d]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=190D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=190D FirstGlance]. <br>
190D is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=190D OCA].  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</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=190d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=190d OCA], [https://pdbe.org/190d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=190d RCSB], [https://www.ebi.ac.uk/pdbsum/190d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=190d ProSAT]</span></td></tr>
==Reference==
</table>
Crystal structure of a four-stranded intercalated DNA: d(C4)., Chen L, Cai L, Zhang X, Rich A, Biochemistry. 1994 Nov 22;33(46):13540-6. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7947764 7947764]
__TOC__
[[Category: Protein complex]]
</StructureSection>
[[Category: Cai, L.]]
[[Category: Large Structures]]
[[Category: Chen, L.]]
[[Category: Cai L]]
[[Category: Rich, A.]]
[[Category: Chen L]]
[[Category: Zhang, X.]]
[[Category: Rich A]]
[[Category: base intercalated]]
[[Category: Zhang X]]
[[Category: mismatched]]
[[Category: parallel-stranded tetraplex]]
[[Category: quadruple helix]]
[[Category: u-dna]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sat Nov 24 22:10:59 2007''

Latest revision as of 09:26, 7 February 2024

Crystal structure of a four-stranded intercalated DNA: d(C4)Crystal structure of a four-stranded intercalated DNA: d(C4)

Structural highlights

190d is a 8 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.8Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

190d, resolution 1.80Å

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OCA
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