3hy1

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[[Image:3hy1.png|left|200px]]
 
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{{STRUCTURE_3hy1| PDB=3hy1 | SCENE= }}
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==Crystal Structure of catalytic fragment of E. coli AlaRS G237A in complex with SerSA==
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<StructureSection load='3hy1' size='340' side='right'caption='[[3hy1]], [[Resolution|resolution]] 2.79&Aring;' scene=''>
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===Crystal Structure of catalytic fragment of E. coli AlaRS G237A in complex with SerSA===
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3hy1]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HY1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3HY1 FirstGlance]. <br>
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{{ABSTRACT_PUBMED_20010690}}
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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]] 2.79&#8491;</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=HED:2-HYDROXYETHYL+DISULFIDE'>HED</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=SSA:5-O-(N-(L-SERYL)-SULFAMOYL)ADENOSINE'>SSA</scene></td></tr>
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==About this Structure==
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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=3hy1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hy1 OCA], [https://pdbe.org/3hy1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3hy1 RCSB], [https://www.ebi.ac.uk/pdbsum/3hy1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3hy1 ProSAT]</span></td></tr>
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[[3hy1]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HY1 OCA].
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SYA_ECOLI SYA_ECOLI] Catalyzes the attachment of alanine to tRNA(Ala) in a two-step reaction: alanine is first activated by ATP to form Ala-AMP and then transferred to the acceptor end of tRNA(Ala). AlaRS also incorrectly activates the sterically smaller than alanine amino acid glycine as well as the sterically larger amino acid serine. These incorrectly charged amino acids occur because the of inherent physicochemical limitations on discrimination between closely related amino acids (glycine and serine) in the charging step.<ref>PMID:12554667</ref> <ref>PMID:18723508</ref> <ref>PMID:19661429</ref> Edits incorrectly charged Ser-tRNA(Ala) and Gly-tRNA(Ala) but not incorrectly charged Ser-tRNA(Thr).<ref>PMID:12554667</ref> <ref>PMID:18723508</ref> <ref>PMID:19661429</ref>
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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/hy/3hy1_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/main_output.php?pdb_ID=3hy1 ConSurf].
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<div style="clear:both"></div>
==See Also==
==See Also==
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*[[Aminoacyl tRNA Synthetase|Aminoacyl tRNA Synthetase]]
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*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:020010690</ref><references group="xtra"/>
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__TOC__
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[[Category: Alanine--tRNA ligase]]
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</StructureSection>
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[[Category: Escherichia coli]]
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[[Category: Escherichia coli K-12]]
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[[Category: Guo, M.]]
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[[Category: Large Structures]]
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[[Category: Schimmel, P.]]
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[[Category: Guo M]]
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[[Category: Yang, X L.]]
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[[Category: Schimmel P]]
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[[Category: Amino acid-binding]]
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[[Category: Yang X-L]]
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[[Category: Aminoacyl-trna synthetase]]
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[[Category: Atp-binding]]
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[[Category: Ligase]]
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[[Category: Metal-binding]]
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[[Category: Nucleotide-binding]]
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[[Category: Protein biosynthesis]]
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[[Category: Zinc-finger]]
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Current revision

Crystal Structure of catalytic fragment of E. coli AlaRS G237A in complex with SerSA

PDB ID 3hy1

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