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1qwa

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[[Image:1qwa.gif|left|200px]]
 
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==NMR structure of 5'-r(GGAUGCCUCCCGAGUGCAUCC): an RNA hairpin derived from the mouse 5'ETS that binds nucleolin RBD12.==
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The line below this paragraph, containing "STRUCTURE_1qwa", creates the "Structure Box" on the page.
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<StructureSection load='1qwa' size='340' side='right'caption='[[1qwa]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1qwa]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QWA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QWA FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1qwa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qwa OCA], [https://pdbe.org/1qwa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qwa RCSB], [https://www.ebi.ac.uk/pdbsum/1qwa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qwa ProSAT]</span></td></tr>
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{{STRUCTURE_1qwa| PDB=1qwa | SCENE= }}
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</table>
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__TOC__
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'''NMR structure of 5'-r(GGAUGCCUCCCGAGUGCAUCC): an RNA hairpin derived from the mouse 5'ETS that binds nucleolin RBD12.'''
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Mus musculus]]
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==Overview==
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[[Category: Feigon J]]
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Nucleolin, a multi-domain protein involved in ribosome biogenesis, has been shown to bind the consensus sequence (U/G)CCCG(A/G) in the context of a hairpin loop structure (nucleolin recognition element; NRE). Previous studies have shown that the first two RNA-binding domains in nucleolin (RBD12) are responsible for the interaction with the in vitro selected NRE (sNRE). We have previously reported the structures of nucleolin RBD12, sNRE and nucleolin RBD12-sNRE complex. A comparison of free and bound sNRE shows that the NRE loop becomes structured upon binding. From this observation, we hypothesized that the disordered hairpin loop of sNRE facilitates conformational rearrangements when the protein binds. Here, we show that nucleolin RBD12 is also sufficient for sequence- specific binding of two NRE sequences found in pre-rRNA, b1NRE and b2NRE. Structural investigations of the free NREs using NMR spectroscopy show that the b1NRE loop is conformationally heterogeneous, while the b2NRE loop is structured. The b2NRE forms a hairpin capped by a YNMG-like tetraloop. Comparison of the chemical shifts of sNRE and b2NRE in complex with nucleolin RBD12 suggests that the NRE consensus nucleotides adopt a similar conformation. These results show that a disordered NRE consensus sequence is not a prerequisite for nucleolin RBD12 binding.
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[[Category: Finger LD]]
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[[Category: Johansson C]]
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==About this Structure==
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[[Category: Trantirek L]]
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1QWA is a [[Single protein]] structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QWA OCA].
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==Reference==
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Solution structures of stem-loop RNAs that bind to the two N-terminal RNA-binding domains of nucleolin., Finger LD, Trantirek L, Johansson C, Feigon J, Nucleic Acids Res. 2003 Nov 15;31(22):6461-72. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14602904 14602904]
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[[Category: Single protein]]
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[[Category: Feigon, J.]]
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[[Category: Finger, L D.]]
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[[Category: Johansson, C.]]
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[[Category: Trantirek, L.]]
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[[Category: A-form helix]]
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[[Category: Bulged nucleotide]]
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[[Category: Hairpin]]
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[[Category: Tetraloop]]
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[[Category: Uncg]]
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[[Category: Uucg]]
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[[Category: Ynmg]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 06:46:21 2008''
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Current revision

NMR structure of 5'-r(GGAUGCCUCCCGAGUGCAUCC): an RNA hairpin derived from the mouse 5'ETS that binds nucleolin RBD12.

PDB ID 1qwa

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