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New page: left|200px<br /><applet load="1qc1" size="450" color="white" frame="true" align="right" spinBox="true" caption="1qc1, resolution 2.5Å" /> '''CRYSTAL STRUCTURE OF ...
 
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[[Image:1qc1.gif|left|200px]]<br /><applet load="1qc1" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1qc1, resolution 2.5&Aring;" />
'''CRYSTAL STRUCTURE OF THE SELF-FITTED B-DNA DECAMER D(CCGCCGGCGG)'''<br />


==Overview==
==CRYSTAL STRUCTURE OF THE SELF-FITTED B-DNA DECAMER D(CCGCCGGCGG)==
Groove-backbone interaction is a natural and biologically relevant, mechanism for the specific assembly of B-DNA double helices. Crystal, engineering and crystal packing analysis of oligonucleotides of different, sizes and sequences reveal that the sequence-dependent self-fitting of, B-DNA helices is a dominant constraint for their ordered assembly. It can, override the other intermolecular interactions and impose the overall, geometry of the packing. Analysis of experimental examples of, architectural motifs formed by the geometric combination of self-fitted, DNA segments leads to general rules for DNA assembly. Like a directing, piece for a supramolecular 'construction set', the double helix imposes a, limited number of geometric solutions. These basic architectural, constraints could direct, in a codified manner, the formation of, higher-order structures. DNA architectural motifs exhibit new structural, and electrostatic properties which could have some implications for their, molecular recognition by proteins acting on DNA.
<StructureSection load='1qc1' size='340' side='right'caption='[[1qc1]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[1qc1]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QC1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QC1 FirstGlance]. <br>
1QC1 is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with MG as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1QC1 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]] 2.5&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
==Reference==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1qc1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qc1 OCA], [https://pdbe.org/1qc1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qc1 RCSB], [https://www.ebi.ac.uk/pdbsum/1qc1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qc1 ProSAT]</span></td></tr>
DNA self-fitting: the double helix directs the geometry of its supramolecular assembly., Timsit Y, Moras D, EMBO J. 1994 Jun 15;13(12):2737-46. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8026458 8026458]
</table>
[[Category: Protein complex]]
__TOC__
[[Category: Moras, D.]]
</StructureSection>
[[Category: Timsit, Y.]]
[[Category: Large Structures]]
[[Category: MG]]
[[Category: Moras D]]
[[Category: b-dna double-helix]]
[[Category: Timsit Y]]
[[Category: dna-dna recognition]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 25 03:56:37 2007''

Latest revision as of 08:14, 14 February 2024

CRYSTAL STRUCTURE OF THE SELF-FITTED B-DNA DECAMER D(CCGCCGGCGG)

1qc1, resolution 2.50Å

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