1osu: Difference between revisions

From Proteopedia
Jump to navigationJump to search
← Older edit
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,331,613 edits
No edit summary
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,331,613 edits
No edit summary
 
(10 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1osu.jpg|left|200px]]


<!--
==STRUCTURE OF THE RNA HEXAMER, R(UUCGCG), WITH A 5'-UU-OVERHANG EXHIBITING HOOGSTEEN-LIKE TRANS U-U BASE PAIRS==
The line below this paragraph, containing "STRUCTURE_1osu", creates the "Structure Box" on the page.
<StructureSection load='1osu' size='340' side='right'caption='[[1osu]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1osu]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OSU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OSU FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.4&#8491;</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=1osu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1osu OCA], [https://pdbe.org/1osu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1osu RCSB], [https://www.ebi.ac.uk/pdbsum/1osu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1osu ProSAT]</span></td></tr>
{{STRUCTURE_1osu|  PDB=1osu  |  SCENE= }}
</table>
 
__TOC__
'''STRUCTURE OF THE RNA HEXAMER, R(UUCGCG), WITH A 5'-UU-OVERHANG EXHIBITING HOOGSTEEN-LIKE TRANS U-U BASE PAIRS'''
</StructureSection>
 
[[Category: Large Structures]]
 
[[Category: Rao ST]]
==Overview==
[[Category: Sundaralingam M]]
The crystal structure of the RNA fragment, 5'-r(UUCGCG)-3', has been determined at 1.4 A resolution by a combination of single isomorphous replacement and molecular search methods. The 3'-terminal CGCG portion of the hexamer engages in Watson-Crick hydrogen bonding while the 5'-terminal UU-overhang forms novel Hoogsteen-like U.U self-base pairs with the overhang of an adjacent duplex. The U.U pairs display a single conventional hydrogen bond between O4 (U1) and N3 (U8) and a CH-O hydrogen bond between C5-H (U1) and O4 (U8), through the Hoogsteen face of the pyrimidine base U1. This unusual arrangement of one of the bases results in a trans U.U pair on antiparallel strands in contrast to the usual cis base pairs. The structure emphasizes the pronounced polymorphism of U.U pairs and has implications for folding of RNA molecules.
[[Category: Wahl MC]]
 
==About this Structure==
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OSU OCA].  
 
==Reference==
The structure of r(UUCGCG) has a 5'-UU-overhang exhibiting Hoogsteen-like trans U.U base pairs., Wahl MC, Rao ST, Sundaralingam M, Nat Struct Biol. 1996 Jan;3(1):24-31. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8548450 8548450]
[[Category: Rao, S T.]]
[[Category: Sundaralingam, M.]]
[[Category: Wahl, M C.]]
[[Category: 5'-uu-overhang]]
[[Category: A-rna]]
[[Category: Double helix]]
[[Category: Mismatched]]
[[Category: Nicked]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 04:14:31 2008''
Retrieved from "https://proteopedia.org/1osu"