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{{Seed}}
[[Image:1id9.png|left|200px]]


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==STRUCTURE OF THE HYBRID RNA/DNA R-GCUUCGGC-D[F]U IN PRESENCE OF RH(NH3)6+++==
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<StructureSection load='1id9' size='340' side='right'caption='[[1id9]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1id9]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ID9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ID9 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]] 1.6&#8491;</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=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=RHD:RHODIUM+HEXAMINE+ION'>RHD</scene>, <scene name='pdbligand=UFP:5-FLUORO-2-DEOXYURIDINE-5-MONOPHOSPHATE'>UFP</scene></td></tr>
{{STRUCTURE_1id9|  PDB=1id9  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1id9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1id9 OCA], [https://pdbe.org/1id9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1id9 RCSB], [https://www.ebi.ac.uk/pdbsum/1id9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1id9 ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
In the presence of cobalt, rhodium or iridium hexammine salts, the RNA/DNA hybrid r-GCUUCGGC-d(X)U (with X = F, Cl or Br) crystallizes as a double-stranded helix with four consecutive G-U and C-U mismatches. The deoxy chloro- and bromouracil derivatives are isomorphous, space group C2, unit-cell parameters a = 53.80, b = 19.40, c = 50.31 A, beta = 109.9 degrees, with the same infinite helix arrangement in the packing along the c axis with one extra DNA halogenouracil base included in the stacking. However, the fluorouracil derivative, with unit-cell parameters a = 53.75, b = 19.40, c = 45.84 A, beta = 105.7 degrees, is not isomorphous. The corresponding extra DNA base d(F)U of the second strand is ejected out of the helical stack, leading to a shortening of the c axis. The specific destabilization of the fluorouracil for the duplex building is analyzed in terms of the polarization effect of the halogen atom attached to the 3'-terminal base that modulates its interactions.


===STRUCTURE OF THE HYBRID RNA/DNA R-GCUUCGGC-D[F]U IN PRESENCE OF RH(NH3)6+++===
Destabilizing effect of a fluorouracil extra base in a hybrid RNA duplex compared with bromo and chloro analogues.,Cruse W, Saludjian P, Neuman A, Prange T Acta Crystallogr D Biol Crystallogr. 2001 Nov;57(Pt 11):1609-13. Epub 2001, Oct 25. PMID:11679725<ref>PMID:11679725</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1id9" style="background-color:#fffaf0;"></div>
(as it appears on PubMed at http://www.pubmed.gov), where 11679725 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_11679725}}
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</StructureSection>
==About this Structure==
[[Category: Large Structures]]
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ID9 OCA].
[[Category: Cruse W]]
 
[[Category: Neuman A]]
==Reference==
[[Category: Prange T]]
Destabilizing effect of a fluorouracil extra base in a hybrid RNA duplex compared with bromo and chloro analogues., Cruse W, Saludjian P, Neuman A, Prange T, Acta Crystallogr D Biol Crystallogr. 2001 Nov;57(Pt 11):1609-13. Epub 2001, Oct 25. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11679725 11679725]
[[Category: Saludjian P]]
[[Category: Cruse, W.]]
[[Category: Neuman, A.]]
[[Category: Prange, T.]]
[[Category: Saludjian, P.]]
[[Category: C-u mismatch]]
[[Category: Fluoro uracil]]
[[Category: G-u mismatch]]
[[Category: Rna/dna hybrid]]
 
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