3teg

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Bacterial and Eukaryotic Phenylalanyl-tRNA Synthetases Catalyze Misaminoacylation of tRNAPhe with 3,4-Dihydroxy-L-Phenylalanine (L-Dopa)

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Retrieved from "http://52.214.119.220/wiki/index.php/3teg"

Categories: Homo sapiens | Large Structures | Klipcan L | Moor N | Safro M

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 ==Bacterial and Eukaryotic Phenylalanyl-tRNA Synthetases Catalyze Misaminoacylation of tRNAPhe with 3,4-Dihydroxy-L-Phenylalanine (L-Dopa)==
-<StructureSection load='3teg' size='340' side='right' caption='[[3teg]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
+<StructureSection load='3teg' size='340' side='right'caption='[[3teg]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3teg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TEG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TEG FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3teg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TEG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3TEG FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DAH:3,4-DIHYDROXYPHENYLALANINE'>DAH</scene><br>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2044&#8491;</td></tr>
-<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3cmq|3cmq]], [[3hfv|3hfv]], [[3teh|3teh]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DAH:3,4-DIHYDROXYPHENYLALANINE'>DAH</scene></td></tr>
-<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">FARS1, FARS2, HSPC320 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3teg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3teg OCA], [https://pdbe.org/3teg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3teg RCSB], [https://www.ebi.ac.uk/pdbsum/3teg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3teg ProSAT]</span></td></tr>
-<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phenylalanine--tRNA_ligase Phenylalanine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.20 6.1.1.20] </span></td></tr>
+</table>
-<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=3teg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3teg OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3teg RCSB], [http://www.ebi.ac.uk/pdbsum/3teg PDBsum]</span></td></tr>
+== Function ==
-<table>
+[https://www.uniprot.org/uniprot/SYFM_HUMAN SYFM_HUMAN] Catalyzes direct attachment of p-Tyr (Tyr) to tRNAPhe. Permits also, with a lower efficiency, the attachment of m-Tyr to tRNAPhe, thereby opening the way for delivery of the misacylated tRNA to the ribosome and incorporation of ROS-damaged amino acid into proteins.<ref>PMID:19549855</ref>
-<div style="background-color:#fffaf0;">
-== Publication Abstract from PubMed ==
-Aminoacyl-tRNA synthetases exert control over the accuracy of translation by selective pairing the correct amino acids with their cognate tRNAs, and proofreading the misacylated products. Here we show that three existing, structurally different phenylalanyl-tRNA synthetases-human mitochondrial (HsmtPheRS), human cytoplasmic (HsctPheRS), and eubacterial from Thermus thermophilus (TtPheRS), catalyze mischarging of tRNA(Phe) with an oxidized analog of tyrosine-L-dopa. The lowest level of L-dopa discrimination over the cognate amino acid, exhibited by HsmtPheRS, is comparable to that of tyrosyl-tRNA synthetase. HsmtPheRS and TtPheRS complexes with L-dopa revealed in the active sites an electron density shaping this ligand. HsctPheRS and TtPheRS possessing editing activity are capable of hydrolyzing the exogenous L-dopa-tRNA(Phe) as efficiently as Tyr-tRNA(Phe). However, editing activity of PheRS does not guarantee reduction of the aminoacylation error rate to escape misincorporation of L-dopa into polypeptide chains.
-Bacterial and Eukaryotic Phenylalanyl-tRNA Synthetases Catalyze Misaminoacylation of tRNA(Phe) with 3,4-Dihydroxy-L-Phenylalanine.,Moor N, Klipcan L, Safro MG Chem Biol. 2011 Oct 28;18(10):1221-9. PMID:22035791<ref>PMID:22035791</ref>
-From MEDLINEÂ®/PubMedÂ®, a database of the U.S. National Library of Medicine.<br>
+==See Also==
-</div>
+*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
 == References ==
 <references/>
@@ Line 22: / Line 18: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Phenylalanine--tRNA ligase]]
+[[Category: Large Structures]]
-[[Category: Klipcan, L.]]
+[[Category: Klipcan L]]
-[[Category: Moor, N.]]
+[[Category: Moor N]]
-[[Category: Safro, M.]]
+[[Category: Safro M]]
-[[Category: Dopa]]
-[[Category: L-dopa]]
-[[Category: Ligase]]
-[[Category: Trna]]

3teg

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Bacterial and Eukaryotic Phenylalanyl-tRNA Synthetases Catalyze Misaminoacylation of tRNAPhe with 3,4-Dihydroxy-L-Phenylalanine (L-Dopa)

Structural highlights

Function

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References

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