3n2y
From Proteopedia
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- | {{Seed}} | ||
- | [[Image:3n2y.jpg|left|200px]] | ||
- | + | ==Crystal structure of tyrosyl-tRNA synthetase complexed with p-(2-tetrazolyl)-phenylalanine== | |
- | + | <StructureSection load='3n2y' size='340' side='right'caption='[[3n2y]], [[Resolution|resolution]] 2.49Å' scene=''> | |
- | + | == Structural highlights == | |
- | + | <table><tr><td colspan='2'>[[3n2y]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3N2Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3N2Y FirstGlance]. <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]] 2.49Å</td></tr> | |
- | -- | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=TEF:4-(2H-TETRAZOL-2-YL)-L-PHENYLALANINE'>TEF</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=3n2y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3n2y OCA], [https://pdbe.org/3n2y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3n2y RCSB], [https://www.ebi.ac.uk/pdbsum/3n2y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3n2y ProSAT]</span></td></tr> | |
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/SYY_METJA SYY_METJA] Catalyzes the attachment of tyrosine to tRNA(Tyr) in a two-step reaction: tyrosine is first activated by ATP to form Tyr-AMP and then transferred to the acceptor end of tRNA(Tyr).<ref>PMID:10585437</ref> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Light-induced chemical reactions exist in nature, regulating many important cellular and organismal functions, e.g., photosensing in prokaryotes and vision formation in mammals. Here, we report the genetic incorporation of a photoreactive unnatural amino acid, p-(2-tetrazole)phenylalanine (p-Tpa), into myoglobin site-specifically in E. coli by evolving an orthogonal tRNA/aminoacyl-tRNA synthetase pair and the use of p-Tpa as a bioorthogonal chemical "handle" for fluorescent labeling of p-Tpa-encoded myoglobin via the photoclick reaction. Moreover, we elucidated the structural basis for the biosynthetic incorporation of p-Tpa into proteins by solving the X-ray structure of p-Tpa-specific aminoacyl-tRNA synthetase in complex with p-Tpa. The genetic encoding of this photoreactive amino acid should make it possible in the future to photoregulate protein function in living systems. | ||
- | + | A biosynthetic route to photoclick chemistry on proteins.,Wang J, Zhang W, Song W, Wang Y, Yu Z, Li J, Wu M, Wang L, Zang J, Lin Q J Am Chem Soc. 2010 Oct 27;132(42):14812-8. PMID:20919707<ref>PMID:20919707</ref> | |
+ | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
+ | </div> | ||
+ | <div class="pdbe-citations 3n2y" style="background-color:#fffaf0;"></div> | ||
- | + | ==See Also== | |
- | + | *[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]] | |
- | + | == References == | |
- | + | <references/> | |
- | + | __TOC__ | |
- | + | </StructureSection> | |
- | == | + | [[Category: Large Structures]] |
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- | == | + | |
- | < | + | |
[[Category: Methanocaldococcus jannaschii]] | [[Category: Methanocaldococcus jannaschii]] | ||
- | + | [[Category: Li J]] | |
- | [[Category: Li | + | [[Category: Wu M]] |
- | [[Category: Wu | + | [[Category: Zang J]] |
- | [[Category: Zang | + | |
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Current revision
Crystal structure of tyrosyl-tRNA synthetase complexed with p-(2-tetrazolyl)-phenylalanine
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