5y0p
From Proteopedia
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==Crystal structure of Bacillus subtilis TmcAL bound with alpha-thio ATP== | ==Crystal structure of Bacillus subtilis TmcAL bound with alpha-thio ATP== | ||
| - | <StructureSection load='5y0p' size='340' side='right' caption='[[5y0p]], [[Resolution|resolution]] 2.30Å' scene=''> | + | <StructureSection load='5y0p' size='340' side='right'caption='[[5y0p]], [[Resolution|resolution]] 2.30Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[5y0p]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5Y0P OCA]. For a <b>guided tour on the structure components</b> use [ | + | <table><tr><td colspan='2'>[[5y0p]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5Y0P OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5Y0P FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=TAT:ADENOSINE-5-RP-ALPHA-THIO-TRIPHOSPHATE'>TAT</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=TAT:ADENOSINE-5-RP-ALPHA-THIO-TRIPHOSPHATE'>TAT</scene></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=5y0p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5y0p OCA], [https://pdbe.org/5y0p PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5y0p RCSB], [https://www.ebi.ac.uk/pdbsum/5y0p PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5y0p ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/TMCAL_BACSU TMCAL_BACSU] Catalyzes the formation of N(4)-acetylcytidine (ac(4)C) at the wobble position of elongator tRNA(Met), using acetate and ATP as substrates. First activates an acetate ion to form acetyladenylate (Ac-AMP) and then transfers the acetyl group to tRNA to form ac(4)C34.[HAMAP-Rule:MF_01539]<ref>PMID:30150682</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Modification of tRNA anticodons plays a critical role in ensuring accurate translation. N(4)-acetylcytidine (ac(4)C) is present at the anticodon first position (position 34) of bacterial elongator tRNA(Met). Herein, we identified Bacillus subtilis ylbM (renamed tmcAL) as a novel gene responsible for ac(4)C34 formation. Unlike general acetyltransferases that use acetyl-CoA, TmcAL activates an acetate ion to form acetyladenylate and then catalyzes ac(4)C34 formation through a mechanism similar to tRNA aminoacylation. The crystal structure of TmcAL with an ATP analog reveals the molecular basis of ac(4)C34 formation. The DeltatmcAL strain displayed a cold-sensitive phenotype and a strong genetic interaction with tilS that encodes the enzyme responsible for synthesizing lysidine (L) at position 34 of tRNA(Ile) to facilitate AUA decoding. Mistranslation of the AUA codon as Met in the DeltatmcAL strain upon tilS repression suggests that ac(4)C34 modification of tRNA(Met) and L34 modification of tRNA(Ile) act cooperatively to prevent misdecoding of the AUA codon. | ||
| + | |||
| + | Acetate-dependent tRNA acetylation required for decoding fidelity in protein synthesis.,Taniguchi T, Miyauchi K, Sakaguchi Y, Yamashita S, Soma A, Tomita K, Suzuki T Nat Chem Biol. 2018 Nov;14(11):1010-1020. doi: 10.1038/s41589-018-0119-z. Epub, 2018 Aug 27. PMID:30150682<ref>PMID:30150682</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5y0p" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Bacillus subtilis]] |
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Tomita K]] |
| - | [[Category: | + | [[Category: Yamashita S]] |
Current revision
Crystal structure of Bacillus subtilis TmcAL bound with alpha-thio ATP
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