This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
8psh
From Proteopedia
(Difference between revisions)
| (9 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | [[Image:8psh.gif|left|200px]] | ||
| - | + | ==HIGH RESOLUTION NMR STRUCTURE OF THE STEREOREGULAR (ALL-RP)-PHOSPHOROTHIOATE-DNA/RNA HYBRID D (G*PS*C*PS*G*PS*T*PS*C*PS*A*PS*G*PS*G)R(CCUGACGC), MINIMIZED AVERAGE STRUCTURE== | |
| - | + | <StructureSection load='8psh' size='340' side='right'caption='[[8psh]]' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[8psh]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8PSH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8PSH FirstGlance]. <br> | |
| - | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> | |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AS:2-DEOXY-ADENOSINE+-5-THIO-MONOPHOSPHATE'>AS</scene>, <scene name='pdbligand=GS:GUANOSINE-5-THIO-MONOPHOSPHATE'>GS</scene>, <scene name='pdbligand=PST:THYMIDINE-5-THIOPHOSPHATE'>PST</scene>, <scene name='pdbligand=SC:2-DEOXY-CYTIDINE-5-THIOPHOSPHORATE'>SC</scene></td></tr> | |
| - | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8psh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8psh OCA], [https://pdbe.org/8psh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8psh RCSB], [https://www.ebi.ac.uk/pdbsum/8psh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8psh ProSAT]</span></td></tr> | |
| - | + | </table> | |
| - | + | <div style="background-color:#fffaf0;"> | |
| - | + | == Publication Abstract from PubMed == | |
| - | + | ||
| - | == | + | |
In this work, we present the first NMR solution structure of a DNA/RNA hybrid containing stereoregular Rp-phosphorothioate modifications of all DNA backbone linkages. The complex of the enzymatically synthesized phosphorothioate DNA octamer (all-Rp)-d(GCGTCAGG) and its complementary RNA r(CCUGACGC) was found to adopt an overall conformation within the A-form family. Most helical parameters and the sugar puckers of the DNA strand assume values intermediate between A- and B-form. The close structural similarity with the unmodified DNA/RNA hybrid of the same sequence may explain why both the natural and the sulfur-substituted complex can be recognized and digested by ribonuclease H. | In this work, we present the first NMR solution structure of a DNA/RNA hybrid containing stereoregular Rp-phosphorothioate modifications of all DNA backbone linkages. The complex of the enzymatically synthesized phosphorothioate DNA octamer (all-Rp)-d(GCGTCAGG) and its complementary RNA r(CCUGACGC) was found to adopt an overall conformation within the A-form family. Most helical parameters and the sugar puckers of the DNA strand assume values intermediate between A- and B-form. The close structural similarity with the unmodified DNA/RNA hybrid of the same sequence may explain why both the natural and the sulfur-substituted complex can be recognized and digested by ribonuclease H. | ||
| - | + | Structure of a stereoregular phosphorothioate DNA/RNA duplex.,Bachelin M, Hessler G, Kurz G, Hacia JG, Dervan PB, Kessler H Nat Struct Biol. 1998 Apr;5(4):271-6. PMID:9546216<ref>PMID:9546216</ref> | |
| - | + | ||
| - | + | ||
| - | + | ||
| - | Structure of a stereoregular phosphorothioate DNA/RNA duplex., Bachelin M, Hessler G, Kurz G, Hacia JG, Dervan PB, Kessler H | + | |
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 8psh" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Bachelin M]] | ||
| + | [[Category: Dervan PB]] | ||
| + | [[Category: Hacia JG]] | ||
| + | [[Category: Hessler G]] | ||
| + | [[Category: Kessler H]] | ||
| + | [[Category: Kurz G]] | ||
Current revision
HIGH RESOLUTION NMR STRUCTURE OF THE STEREOREGULAR (ALL-RP)-PHOSPHOROTHIOATE-DNA/RNA HYBRID D (G*PS*C*PS*G*PS*T*PS*C*PS*A*PS*G*PS*G)R(CCUGACGC), MINIMIZED AVERAGE STRUCTURE
| |||||||||||
Categories: Large Structures | Bachelin M | Dervan PB | Hacia JG | Hessler G | Kessler H | Kurz G
