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| [[Image:437d.gif|left|200px]]
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| {{Structure
| | ==CRYSTAL STRUCTURE OF AN RNA PSEUDOKNOT FROM BEET WESTERN YELLOW VIRUS INVOLVED IN RIBOSOMAL FRAMESHIFTING== |
| |PDB= 437d |SIZE=350|CAPTION= <scene name='initialview01'>437d</scene>, resolution 1.6Å
| | <StructureSection load='437d' size='340' side='right'caption='[[437d]], [[Resolution|resolution]] 1.60Å' scene=''> |
| |SITE=
| | == Structural highlights == |
| |LIGAND= <scene name='pdbligand=A:ADENOSINE-5'-MONOPHOSPHATE'>A</scene>, <scene name='pdbligand=C:CYTIDINE-5'-MONOPHOSPHATE'>C</scene>, <scene name='pdbligand=G:GUANOSINE-5'-MONOPHOSPHATE'>G</scene>, <scene name='pdbligand=GTP:GUANOSINE-5'-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=U:URIDINE-5'-MONOPHOSPHATE'>U</scene>
| | <table><tr><td colspan='2'>[[437d]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=437D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=437D FirstGlance]. <br> |
| |ACTIVITY=
| | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6Å</td></tr> |
| |GENE=
| | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> |
| |DOMAIN=
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=437d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=437d OCA], [https://pdbe.org/437d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=437d RCSB], [https://www.ebi.ac.uk/pdbsum/437d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=437d ProSAT]</span></td></tr> |
| |RELATEDENTRY=
| | </table> |
| |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=437d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=437d OCA], [http://www.ebi.ac.uk/pdbsum/437d PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=437d RCSB]</span>
| | __TOC__ |
| }}
| | </StructureSection> |
| | | [[Category: Large Structures]] |
| '''CRYSTAL STRUCTURE OF AN RNA PSEUDOKNOT FROM BEET WESTERN YELLOW VIRUS INVOLVED IN RIBOSOMAL FRAMESHIFTING'''
| | [[Category: Berger JM]] |
| | | [[Category: Chen L]] |
| | | [[Category: Egli M]] |
| ==Overview==
| | [[Category: Rich A]] |
| Many viruses regulate translation of polycistronic mRNA using a -1 ribosomal frameshift induced by an RNA pseudoknot. A pseudoknot has two stems that form a quasi-continuous helix and two connecting loops. A 1.6 A crystal structure of the beet western yellow virus (BWYV) pseudoknot reveals rotation and a bend at the junction of the two stems. A loop base is inserted in the major groove of one stem with quadruple-base interactions. The second loop forms a new minor-groove triplex motif with the other stem, involving 2'-OH and triple-base interactions, as well as sodium ion coordination. Overall, the number of hydrogen bonds stabilizing the tertiary interactions exceeds the number involved in Watson-Crick base pairs. This structure will aid mechanistic analyses of ribosomal frameshifting.
| | [[Category: Su L]] |
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| ==About this Structure==
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| 437D is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=437D OCA].
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| ==Reference==
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| Minor groove RNA triplex in the crystal structure of a ribosomal frameshifting viral pseudoknot., Su L, Chen L, Egli M, Berger JM, Rich A, Nat Struct Biol. 1999 Mar;6(3):285-92. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10074948 10074948]
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| [[Category: Protein complex]] | |
| [[Category: Berger, J M.]] | |
| [[Category: Chen, L.]] | |
| [[Category: Egli, M.]] | |
| [[Category: Rich, A.]] | |
| [[Category: Su, L.]] | |
| [[Category: pseudoknot]]
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| [[Category: rna]]
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| [[Category: triplex]]
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| [[Category: viral frameshifting]]
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| ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 05:37:16 2008''
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