This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
5vht
From Proteopedia
(Difference between revisions)
m (Protected "5vht" [edit=sysop:move=sysop]) |
|||
| (3 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==E. coli chorismate mutase with orthogonal interface containing p-benzoyl phenylalanine== | |
| + | <StructureSection load='5vht' size='340' side='right'caption='[[5vht]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5vht]] 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=5VHT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VHT 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]] 2Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PBF:PARA-(BENZOYL)-PHENYLALANINE'>PBF</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=5vht FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vht OCA], [https://pdbe.org/5vht PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vht RCSB], [https://www.ebi.ac.uk/pdbsum/5vht PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vht ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/CMPDT_ECOLI CMPDT_ECOLI] Catalyzes the Claisen rearrangement of chorismate to prephenate and the decarboxylation/dehydration of prephenate to phenylpyruvate.<ref>PMID:4261395</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | We have engineered the protein interface of the Escherichia coli chorismate mutase (EcCM) homodimer to be dependent on incorporation of a noncanonical amino acid (ncAA) at residue 72. The large hydrophobic amino acid p-benzoyl phenylalanine (pBzF) was substituted for Tyr72, which led to a catalytically inactive protein. A library of five residues (Leu25', Arg29', Leu76, Ile80' and Asp83') surrounding pBzF72 was generated and subjected to a growth based selection in a chorismate mutase deficient strain. An EcCM variant (Phe25', pBzF72, Thr76, Gly80' and Tyr83') forms a stable homodimer, has catalytic activity similar to the wild type enzyme, and unfolds with a Tm of 53 degrees C. The X-ray crystal structure reveals a pi-pi stacking and hydrogen bonding interactions that stabilize the new protein interface. The strategy described here should be useful for generating organisms that are dependent on the presence of a ncAA for growth. | ||
| - | + | Generation of an Orthogonal Protein-Protein Interface with a Noncanonical Amino Acid.,Koh M, Nasertorabi F, Han GW, Stevens RC, Schultz PG J Am Chem Soc. 2017 Apr 26;139(16):5728-5731. doi: 10.1021/jacs.7b02273. Epub, 2017 Apr 17. PMID:28413876<ref>PMID:28413876</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 5vht" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[3D structures of chorismate mutase|3D structures of chorismate mutase]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Escherichia coli K-12]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Han GW]] | ||
| + | [[Category: Koh M]] | ||
| + | [[Category: Nasertorabi F]] | ||
| + | [[Category: Shultz PG]] | ||
| + | [[Category: Stevens RC]] | ||
Current revision
E. coli chorismate mutase with orthogonal interface containing p-benzoyl phenylalanine
| |||||||||||
