6cuz
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Engineered TrpB from Pyrococcus furiosus, PfTrpB7E6 with (2S,3R)-ethylserine bound as the amino-acrylate== | |
| + | <StructureSection load='6cuz' size='340' side='right' caption='[[6cuz]], [[Resolution|resolution]] 1.75Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[6cuz]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6CUZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6CUZ FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FEV:(2E)-2-[(E)-({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methylidene)amino]pent-2-enoic+acid'>FEV</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr> | ||
| + | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=LLP:(2S)-2-AMINO-6-[[3-HYDROXY-2-METHYL-5-(PHOSPHONOOXYMETHYL)PYRIDIN-4-YL]METHYLIDENEAMINO]HEXANOIC+ACID'>LLP</scene></td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Tryptophan_synthase Tryptophan synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.20 4.2.1.20] </span></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6cuz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6cuz OCA], [http://pdbe.org/6cuz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6cuz RCSB], [http://www.ebi.ac.uk/pdbsum/6cuz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6cuz ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/TRPB1_PYRFU TRPB1_PYRFU]] The beta subunit is responsible for the synthesis of L-tryptophan from indole and L-serine (By similarity). | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Non-canonical amino acids (ncAAs) with dual stereocenters at the alpha and beta positions are valuable precursors to natural products and therapeutics. Despite the potential applications of such bioactive beta-branched ncAAs, their availability is limited due to the inefficiency of the multi-step methods used to prepare them. Here we report a stereoselective biocatalytic synthesis of beta-branched tryptophan analogs using an engineered variant of Pyrococcus furiosus tryptophan synthase (PfTrpB), PfTrpB7E6. PfTrpB7E6 is the first biocatalyst to synthesize bulky beta-branched tryptophan analogs in a single step, with demonstrated access to 27 ncAAs. The molecular basis for the efficient catalysis and broad substrate tolerance of PfTrpB7E6 was explored through X-ray crystallography and UV-visible light spectroscopy, which revealed that a combination of active-site and remote mutations increase the abundance and persistence of a key reactive intermediate. PfTrpB7E6 provides an operationally simple and environmentally benign platform for preparation of beta-branched tryptophan building blocks. | ||
| - | + | Engineered biosynthesis of beta-alkyl tryptophan analogs.,Boville CE, Scheele RA, Koch P, Brinkmann-Chen S, Buller AR, Arnold FH Angew Chem Int Ed Engl. 2018 Sep 14. doi: 10.1002/anie.201807998. PMID:30215880<ref>PMID:30215880</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 6cuz" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Tryptophan synthase]] | ||
| + | [[Category: Arnold, F H]] | ||
| + | [[Category: Boville, C E]] | ||
| + | [[Category: Buller, A R]] | ||
| + | [[Category: Scheele, R A]] | ||
| + | [[Category: Amino-acrylate]] | ||
| + | [[Category: Lyase]] | ||
Revision as of 08:02, 26 September 2018
Engineered TrpB from Pyrococcus furiosus, PfTrpB7E6 with (2S,3R)-ethylserine bound as the amino-acrylate
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