3n2y: Difference between revisions

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[[Image:3n2y.png|left|200px]]


{{STRUCTURE_3n2y| PDB=3n2y | SCENE= }}
==Crystal structure of tyrosyl-tRNA synthetase complexed with p-(2-tetrazolyl)-phenylalanine==
<StructureSection load='3n2y' size='340' side='right'caption='[[3n2y]], [[Resolution|resolution]] 2.49&Aring;' 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]] 2.49&#8491;</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.


===Crystal structure of tyrosyl-tRNA synthetase complexed with p-(2-tetrazolyl)-phenylalanine===
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>


{{ABSTRACT_PUBMED_20919707}}
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
==About this Structure==
<div class="pdbe-citations 3n2y" style="background-color:#fffaf0;"></div>
[[3n2y]] is a 2 chain structure with sequence from [http://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].


==See Also==
==See Also==
*[[Aminoacyl tRNA Synthetase|Aminoacyl tRNA Synthetase]]
*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:020919707</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Methanocaldococcus jannaschii]]
[[Category: Methanocaldococcus jannaschii]]
[[Category: Tyrosine--tRNA ligase]]
[[Category: Li J]]
[[Category: Li, J.]]
[[Category: Wu M]]
[[Category: Wu, M.]]
[[Category: Zang J]]
[[Category: Zang, J.]]
[[Category: Aminoacyl-trna synthetase]]
[[Category: Ligase]]
[[Category: Photoclick chemistry]]
Retrieved from "https://proteopedia.org/3n2y"