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.


3ifi

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: '''Unreleased structure''' The entry 3ifi is ON HOLD Authors: Sheng, J., Gan, J., Salon, J., Huang, Z. Description: 2'-SeMe-dG modified octamer DNA ''Page seeded by [http://oca.weizma...)
Current revision (07:47, 6 September 2023) (edit) (undo)
 
(8 intermediate revisions not shown.)
Line 1: Line 1:
-
'''Unreleased structure'''
 
-
The entry 3ifi is ON HOLD
+
==2'-SeMe-dG modified octamer DNA==
 +
<StructureSection load='3ifi' size='340' side='right'caption='[[3ifi]], [[Resolution|resolution]] 1.20&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[3ifi]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IFI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IFI FirstGlance]. <br>
 +
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.2&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=XUG:2-SE-METHYL-2-SELENOGUANOSINE+5-(DIHYDROGEN+PHOSPHATE)'>XUG</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=3ifi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ifi OCA], [https://pdbe.org/3ifi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ifi RCSB], [https://www.ebi.ac.uk/pdbsum/3ifi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ifi ProSAT]</span></td></tr>
 +
</table>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Selenium modification of nucleic acids is of great importance in X-ray crystal structure determination and functional study of nucleic acids. Herein, we describe a convenient synthesis of a new building block, the 2'-SeMe-modified guanosine (G(Se)) phosphoramidite, and report the first incorporation of the 2'-Se-G moiety into DNA. The X-ray crystal structure of the 2'-Se-modified octamer DNA (5'-GTG(Se)TACAC-3') was determined at a resolution of 1.20 A. We also found that the 2'-Se modification points to the minor groove and that the modified and native structures are virtually identical. Furthermore, we observed that the 2'-Se-G modification can significantly facilitate the crystal growth with respect to the corresponding native DNA.
-
Authors: Sheng, J., Gan, J., Salon, J., Huang, Z.
+
Synthesis and crystal structure of 2'-se-modified guanosine containing DNA.,Salon J, Sheng J, Gan J, Huang Z J Org Chem. 2010 Feb 5;75(3):637-41. PMID:20047333<ref>PMID:20047333</ref>
-
Description: 2'-SeMe-dG modified octamer DNA
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
 
+
</div>
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Aug 5 09:51:50 2009''
+
<div class="pdbe-citations 3ifi" style="background-color:#fffaf0;"></div>
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
 +
[[Category: Large Structures]]
 +
[[Category: Gan J]]
 +
[[Category: Huang Z]]
 +
[[Category: Salon J]]
 +
[[Category: Sheng J]]

Current revision

2'-SeMe-dG modified octamer DNA

PDB ID 3ifi

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools