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==FIVE-NUCLEOTIDE BULGE LOOP FROM TETRAHYMENA THERMOPHILA GROUP I INTRON==
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<StructureSection load='1ajl' size='340' side='right'caption='[[1ajl]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1ajl]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Tetrahymena_thermophila Tetrahymena thermophila]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AJL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1AJL 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=1ajl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ajl OCA], [https://pdbe.org/1ajl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ajl RCSB], [https://www.ebi.ac.uk/pdbsum/1ajl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ajl ProSAT]</span></td></tr>
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== Publication Abstract from PubMed ==
We present the solution conformation, determined by NMR spectroscopy, of a five-nucleotide RNA bulge loop. The bulge interrupts the stem of a 25-nucleotide RNA hairpin, and its sequence and flanking sequences are those of a conserved bulge from a Group I intron. The secondary structure of the bulge loop in the hairpin context is that predicted by the secondary structure prediction algorithm of Zuker. It differs, however, from the secondary structure deduced from sequence covariation of the bulge in the context of the functionally folded Group I introns and observed in the crystal structure of an independently folding domain of the Group I intron from Tetrahymena thermophila. This difference represents an exception to the heierarchical model of RNA folding in which preformed elements of secondary structure interact to form a tertiary structure. The three-dimensional structure of the bulge loop is characterized by discontinuous base stacking. Adjacent adenines stack with each other and with the flanking double helices. However, the position of the central uracil is not well defined by NOE distance constraints and is a point of discontinuity in the base stacking.


===FIVE-NUCLEOTIDE BULGE LOOP FROM TETRAHYMENA THERMOPHILA GROUP I INTRON===
Solution conformation of a five-nucleotide RNA bulge loop from a group I intron.,Luebke KJ, Landry SM, Tinoco I Jr Biochemistry. 1997 Aug 19;36(33):10246-55. PMID:9254623<ref>PMID:9254623</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
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{{ABSTRACT_PUBMED_9254623}}
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</StructureSection>
==About this Structure==
[[Category: Large Structures]]
Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AJL OCA].
[[Category: Tetrahymena thermophila]]
 
[[Category: Landry SM]]
==Reference==
[[Category: Luebke KJ]]
Solution conformation of a five-nucleotide RNA bulge loop from a group I intron., Luebke KJ, Landry SM, Tinoco I Jr, Biochemistry. 1997 Aug 19;36(33):10246-55. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9254623 9254623]
[[Category: Tinoco Junior I]]
[[Category: Junior, I Tinoco.]]
[[Category: Landry, S M.]]
[[Category: Luebke, K J.]]
[[Category: Group i intron]]
[[Category: Ribonucleic acid]]
[[Category: Rna bulge loop]]
 
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