3pkq
From Proteopedia
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- | [[Image:3pkq.jpg|left|200px]] | ||
- | < | + | ==Q83D Variant of S. Enterica RmlA with dGTP== |
- | + | <StructureSection load='3pkq' size='340' side='right'caption='[[3pkq]], [[Resolution|resolution]] 2.40Å' scene=''> | |
- | + | == Structural highlights == | |
- | + | <table><tr><td colspan='2'>[[3pkq]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium Salmonella enterica subsp. enterica serovar Typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PKQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3PKQ 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]] 2.4Å</td></tr> | |
- | --> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DGT:2-DEOXYGUANOSINE-5-TRIPHOSPHATE'>DGT</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</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=3pkq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pkq OCA], [https://pdbe.org/3pkq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3pkq RCSB], [https://www.ebi.ac.uk/pdbsum/3pkq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3pkq ProSAT]</span></td></tr> | |
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/RMLA_SALTY RMLA_SALTY] Catalyzes the formation of dTDP-glucose, from dTTP and glucose 1-phosphate, as well as its pyrophosphorolysis. Is also able to convert non natural substrates such as a wide array of alpha-D-hexopyranosyl, deoxy-alpha-D-glucopyranosyl, aminodeoxy-alpha-D-hexopyranosyl and acetamidodeoxy-alpha-D-hexopyranosyl phosphates to their corresponding dTDP- and UDP-nucleotide sugars.<ref>PMID:8382158</ref> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Directed evolution is a valuable technique to improve enzyme activity in the absence of a priori structural knowledge, which can be typically enhanced via structure-guided strategies. In this study, a combination of both whole-gene error-prone polymerase chain reaction and site-saturation mutagenesis enabled the rapid identification of mutations that improved RmlA activity toward non-native substrates. These mutations have been shown to improve activities over 10-fold for several targeted substrates, including non-native pyrimidine- and purine-based NTPs as well as non-native d- and l-sugars (both alpha- and beta-isomers). This study highlights the first broadly applicable high throughput sugar-1-phosphate nucleotidyltransferase screen and the first proof of concept for the directed evolution of this enzyme class toward the identification of uniquely permissive RmlA variants. | ||
- | + | Expanding the Nucleotide and Sugar 1-Phosphate Promiscuity of Nucleotidyltransferase RmlA via Directed Evolution.,Moretti R, Chang A, Peltier-Pain P, Bingman CA, Phillips GN Jr, Thorson JS J Biol Chem. 2011 Apr 15;286(15):13235-43. Epub 2011 Feb 11. PMID:21317292<ref>PMID:21317292</ref> | |
+ | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
+ | </div> | ||
+ | <div class="pdbe-citations 3pkq" style="background-color:#fffaf0;"></div> | ||
- | == | + | ==See Also== |
- | [[ | + | *[[Glucose-1-phosphate thymidylyltransferase 3D structures|Glucose-1-phosphate thymidylyltransferase 3D structures]] |
- | [[Category: | + | == References == |
- | [[Category: Salmonella enterica subsp. enterica serovar | + | <references/> |
- | [[Category: Bingman | + | __TOC__ |
- | + | </StructureSection> | |
- | [[Category: Chang | + | [[Category: Large Structures]] |
- | [[Category: Moretti | + | [[Category: Salmonella enterica subsp. enterica serovar Typhimurium]] |
- | [[Category: Phillips | + | [[Category: Bingman CA]] |
- | [[Category: Thorson | + | [[Category: Chang A]] |
+ | [[Category: Moretti R]] | ||
+ | [[Category: Phillips Jr GN]] | ||
+ | [[Category: Thorson JS]] |
Current revision
Q83D Variant of S. Enterica RmlA with dGTP
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