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==X-ray crystal structure of C118A RlmN from Escherichia coli with cross-linked in vitro transcribed tRNA==
==X-ray crystal structure of C118A RlmN from Escherichia coli with cross-linked in vitro transcribed tRNA==
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<StructureSection load='5hr7' size='340' side='right' caption='[[5hr7]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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<StructureSection load='5hr7' size='340' side='right'caption='[[5hr7]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[5hr7]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5HR7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5HR7 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[5hr7]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5HR7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5HR7 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=5AD:5-DEOXYADENOSINE'>5AD</scene>, <scene name='pdbligand=MET:METHIONINE'>MET</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CAS:S-(DIMETHYLARSENIC)CYSTEINE'>CAS</scene>, <scene name='pdbligand=SMC:S-METHYLCYSTEINE'>SMC</scene></td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5AD:5-DEOXYADENOSINE'>5AD</scene>, <scene name='pdbligand=CAS:S-(DIMETHYLARSENIC)CYSTEINE'>CAS</scene>, <scene name='pdbligand=MET:METHIONINE'>MET</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=SMC:S-METHYLCYSTEINE'>SMC</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5hr6|5hr6]]</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=5hr7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5hr7 OCA], [https://pdbe.org/5hr7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5hr7 RCSB], [https://www.ebi.ac.uk/pdbsum/5hr7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5hr7 ProSAT]</span></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/23S_rRNA_(adenine(2503)-C(2))-methyltransferase 23S rRNA (adenine(2503)-C(2))-methyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.192 2.1.1.192] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5hr7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5hr7 OCA], [http://pdbe.org/5hr7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5hr7 RCSB], [http://www.ebi.ac.uk/pdbsum/5hr7 PDBsum]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/RLMN_ECO24 RLMN_ECO24]] Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs. m2A2503 modification seems to play a crucial role in the proofreading step occurring at the peptidyl transferase center and thus would serve to optimize ribosomal fidelity.
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[https://www.uniprot.org/uniprot/RLMN_ECOLI RLMN_ECOLI] Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs. m2A2503 modification seems to play a crucial role in the proofreading step occurring at the peptidyl transferase center and thus would serve to optimize ribosomal fidelity. Unmodified tRNA is not a suitable substrate for RlmN, which suggests that RlmN works in a late step during tRNA maturation.<ref>PMID:18025251</ref> <ref>PMID:21415317</ref> <ref>PMID:22891362</ref>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 5hr7" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 5hr7" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[TRNA methyltransferase 3D structures|TRNA methyltransferase 3D structures]]
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*[[Transfer RNA (tRNA)|Transfer RNA (tRNA)]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Boal, A K]]
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[[Category: Escherichia coli]]
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[[Category: Booker, S J]]
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[[Category: Large Structures]]
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[[Category: Grove, T L]]
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[[Category: Boal AK]]
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[[Category: Schwalm, E L]]
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[[Category: Booker SJ]]
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[[Category: Iron-sulfur cluster]]
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[[Category: Grove TL]]
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[[Category: Oxidoreductase-rna complex]]
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[[Category: Schwalm EL]]
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[[Category: Protein-rna complex]]
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[[Category: Radical sam enzyme]]
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[[Category: Transfer rna]]
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Current revision

X-ray crystal structure of C118A RlmN from Escherichia coli with cross-linked in vitro transcribed tRNA

PDB ID 5hr7

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