2pl4: Difference between revisions
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<StructureSection load='2pl4' size='340' side='right'caption='[[2pl4]], [[Resolution|resolution]] 1.65Å' scene=''> | <StructureSection load='2pl4' size='340' side='right'caption='[[2pl4]], [[Resolution|resolution]] 1.65Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2pl4]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PL4 OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[2pl4]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PL4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2PL4 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.65Å</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2pl4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pl4 OCA], [https://pdbe.org/2pl4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pl4 RCSB], [https://www.ebi.ac.uk/pdbsum/2pl4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pl4 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Fourme | [[Category: Fourme R]] | ||
[[Category: Girard | [[Category: Girard E]] | ||
[[Category: Kahn | [[Category: Kahn R]] | ||
[[Category: Prange | [[Category: Prange T]] | ||
Latest revision as of 14:03, 30 August 2023
D-(GGTATACC) under 0.55 GPa hydrostatic pressureD-(GGTATACC) under 0.55 GPa hydrostatic pressure
Structural highlights
Publication Abstract from PubMedThe behaviour of the d(GGTATACC) oligonucleotide has been investigated by X-ray crystallography at 295 K in the range from ambient pressure to 2 GPa (approximately 20,000 atm). Four 3D-structures of the A-DNA form (at ambient pressure, 0.55, 1.09 and 1.39 GPa) were refined at 1.60 or 1.65 A resolution. In addition to the diffraction pattern of the A-form, the broad meridional streaks previously explained by occluded B-DNA octamers within the channels of the crystalline A-form matrix were observed up to at least 2 GPa. This work highlights an important property of nucleic acids, their capability to withstand very high pressures, while keeping in such conditions a nearly invariant geometry of base pairs that store and carry genetic information. The double-helix base-paired architecture behaves as a molecular spring, which makes it especially adapted to very harsh conditions. These features may have contributed to the emergence of a RNA World at prebiotic stage. Adaptation of the base-paired double-helix molecular architecture to extreme pressure.,Girard E, Prange T, Dhaussy AC, Migianu-Griffoni E, Lecouvey M, Chervin JC, Mezouar M, Kahn R, Fourme R Nucleic Acids Res. 2007;35(14):4800-8. Epub 2007 Jul 7. PMID:17617642[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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