1r3g: Difference between revisions

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New page: left|200px<br /><applet load="1r3g" size="450" color="white" frame="true" align="right" spinBox="true" caption="1r3g, resolution 1.16Å" /> '''1.16A X-ray structur...
 
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[[Image:1r3g.gif|left|200px]]<br /><applet load="1r3g" size="450" color="white" frame="true" align="right" spinBox="true"  
[[Image:1r3g.gif|left|200px]]<br /><applet load="1r3g" size="350" color="white" frame="true" align="right" spinBox="true"  
caption="1r3g, resolution 1.16&Aring;" />
caption="1r3g, resolution 1.16&Aring;" />
'''1.16A X-ray structure of the synthetic DNA fragment with the incorporated 2'-O-[(2-Guanidinium)ethyl]-5-methyluridine residues'''<br />
'''1.16A X-ray structure of the synthetic DNA fragment with the incorporated 2'-O-[(2-Guanidinium)ethyl]-5-methyluridine residues'''<br />


==Overview==
==Overview==
[structure: see text] Oligonucleotides with a novel, 2'-O-[2-(guanidinium)ethyl] (2'-O-GE) modification have been synthesized, using a novel protecting group strategy for the guanidinium group. This, modification enhances the binding affinity of oligonucleotides to RNA as, well as duplex DNA (DeltaT(m) 3.2 degrees C per modification). The 2'-O-GE, modified oligonucleotides exhibited exceptional resistance to nuclease, degradation. The crystal structure of a palindromic duplex formed by a DNA, oligonucleotide with a single 2'-O-GE modification was solved at 1.16 A, resolution.
[structure: see text] Oligonucleotides with a novel 2'-O-[2-(guanidinium)ethyl] (2'-O-GE) modification have been synthesized using a novel protecting group strategy for the guanidinium group. This modification enhances the binding affinity of oligonucleotides to RNA as well as duplex DNA (DeltaT(m) 3.2 degrees C per modification). The 2'-O-GE modified oligonucleotides exhibited exceptional resistance to nuclease degradation. The crystal structure of a palindromic duplex formed by a DNA oligonucleotide with a single 2'-O-GE modification was solved at 1.16 A resolution.


==About this Structure==
==About this Structure==
1R3G 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=1R3G OCA].  
1R3G is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with <scene name='pdbligand=MG:'>MG</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R3G OCA].  


==Reference==
==Reference==
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[[Category: Lesnik, E.]]
[[Category: Lesnik, E.]]
[[Category: Manoharan, M.]]
[[Category: Manoharan, M.]]
[[Category: Prakash, T.P.]]
[[Category: Prakash, T P.]]
[[Category: Puschl, A.]]
[[Category: Puschl, A.]]
[[Category: Tereshko, V.]]
[[Category: Tereshko, V.]]
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[[Category: dna]]
[[Category: dna]]


''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sat Nov 24 22:02:37 2007''
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:46:35 2008''