1r3g
From Proteopedia
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1.16A X-ray structure of the synthetic DNA fragment with the incorporated 2'-O-[(2-Guanidinium)ethyl]-5-methyluridine residues
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.
About this Structure
1R3G is a Protein complex structure of sequences from [1] with MG as ligand. Full crystallographic information is available from OCA.
Reference
2'-O-[2-(guanidinium)ethyl]-modified oligonucleotides: stabilizing effect on duplex and triplex structures., Prakash TP, Puschl A, Lesnik E, Mohan V, Tereshko V, Egli M, Manoharan M, Org Lett. 2004 Jun 10;6(12):1971-4. PMID:15176796
Page seeded by OCA on Sat Nov 24 22:02:37 2007
Categories: Protein complex | Egli, M. | Lesnik, E. | Manoharan, M. | Prakash, T.P. | Puschl, A. | Tereshko, V. | MG | Dna
