2zzm

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[[Image:2zzm.png|left|200px]]
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==The complex structure of aTrm5 and tRNALeu==
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<StructureSection load='2zzm' size='340' side='right' caption='[[2zzm]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2zzm]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZZM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZZM FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLZ:N-METHYL-LYSINE'>MLZ</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2zzn|2zzn]]</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2zzm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zzm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2zzm RCSB], [http://www.ebi.ac.uk/pdbsum/2zzm PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zz/2zzm_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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tRNA precursors undergo a maturation process, involving nucleotide modifications and folding into the L-shaped tertiary structure. The N1-methylguanosine at position 37 (m1G37), 3' adjacent to the anticodon, is essential for translational fidelity and efficiency. In archaea and eukaryotes, Trm5 introduces the m1G37 modification into all tRNAs bearing G37. Here we report the crystal structures of archaeal Trm5 (aTrm5) in complex with tRNA(Leu) or tRNA(Cys). The D2-D3 domains of aTrm5 discover and modify G37, independently of the tRNA sequences. D1 is connected to D2-D3 through a flexible linker and is designed to recognize the shape of the tRNA outer corner, as a hallmark of the completed L shape formation. This interaction by D1 lowers the K(m) value for tRNA, enabling the D2-D3 catalysis. Thus, we propose that aTrm5 provides the tertiary structure checkpoint in tRNA maturation.
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{{STRUCTURE_2zzm| PDB=2zzm | SCENE= }}
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Tertiary structure checkpoint at anticodon loop modification in tRNA functional maturation.,Goto-Ito S, Ito T, Kuratani M, Bessho Y, Yokoyama S Nat Struct Mol Biol. 2009 Oct;16(10):1109-15. Epub 2009 Sep 13. PMID:19749755<ref>PMID:19749755</ref>
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===The complex structure of aTrm5 and tRNALeu===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_19749755}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[2zzm]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZZM OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:019749755</ref><references group="xtra"/>
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[[Category: Methanocaldococcus jannaschii]]
[[Category: Methanocaldococcus jannaschii]]
[[Category: Goto-Ito, S.]]
[[Category: Goto-Ito, S.]]

Revision as of 04:45, 2 October 2014

The complex structure of aTrm5 and tRNALeu

2zzm, resolution 2.65Å

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