1fv7

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[[Image:1fv7.gif|left|200px]]
 
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==A TWO B-Z JUNCTION CONTAINING DNA RESOLVES INTO AN ALL RIGHT HANDED DOUBLE HELIX==
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The line below this paragraph, containing "STRUCTURE_1fv7", creates the "Structure Box" on the page.
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<StructureSection load='1fv7' size='340' side='right'caption='[[1fv7]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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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'>[[1fv7]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FV7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FV7 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0DC:2-DEOXY-L-RIBO-FURANOSYL+CYTOSINE-5-MONOPHOSPHATE'>0DC</scene>, <scene name='pdbligand=0DG:2-DEOXY-L-RIBO-FURANOSYL+GUANINE-5-MONOPHOSPHATE'>0DG</scene>, <scene name='pdbligand=5CM:5-METHYL-2-DEOXY-CYTIDINE-5-MONOPHOSPHATE'>5CM</scene></td></tr>
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{{STRUCTURE_1fv7| PDB=1fv7 | SCENE= }}
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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=1fv7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fv7 OCA], [https://pdbe.org/1fv7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fv7 RCSB], [https://www.ebi.ac.uk/pdbsum/1fv7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fv7 ProSAT]</span></td></tr>
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</table>
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'''A TWO B-Z JUNCTION CONTAINING DNA RESOLVES INTO AN ALL RIGHT HANDED DOUBLE HELIX'''
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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==Overview==
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[[Category: El Amri C]]
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Natural and artificial oligonucleotides are capable of assuming many different conformations and functions. Here we present results of an NMR restrained molecular modelling study on the conformational preferences of the modified decanucleotide d((m)C1G2(m)C3G4C5(L)G6(L)(m)C7G8(m)C9G10) .d((m)C11G12(m)C13G14C15(L)G (L)16(m)C17-G18(m)C19G20 ) which contains L deoxynucleotides in its centre. This chimeric DNA was expected to form a right-left-right-handed B-type double-helix (BB*B) at low salt concentration. Actually, it matured into a fully right-handed double helix with its central C(L)pG(L) core forming a right-handed Z-DNA helix embedded in a B-DNA matrix (BZ*B). The interplay between base-base and base-sugar stackings within the core and its immediately adjacent residues was found to be critical in ensuring the stabilisation of the right-handed helix. The structure could serve as a model for the design of antisense oligonucleotides resistant to nucleases and capable of hybridising to natural DNAs and RNAs.
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[[Category: Fermandjian S]]
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[[Category: Mauffret O]]
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==About this Structure==
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[[Category: Rayner B]]
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FV7 OCA].
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[[Category: Santamaria F]]
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[[Category: Tevanian G]]
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==Reference==
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A two B-Z junction containing DNA resolves into an all right-handed double-helix., Mauffret O, El Amri C, Santamaria F, Tevanian G, Rayner B, Fermandjian S, Nucleic Acids Res. 2000 Nov 15;28(22):4403-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11071926 11071926]
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[[Category: Amri, C El.]]
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[[Category: Fermandjian, S.]]
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[[Category: Mauffret, O.]]
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[[Category: Rayner, B.]]
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[[Category: Santamaria, F.]]
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[[Category: Tevanian, G]]
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[[Category: Antisense]]
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[[Category: Dna polymorphism]]
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[[Category: L enantiomery]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:48:01 2008''
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Current revision

A TWO B-Z JUNCTION CONTAINING DNA RESOLVES INTO AN ALL RIGHT HANDED DOUBLE HELIX

PDB ID 1fv7

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