6y0s: Difference between revisions
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<table><tr><td colspan='2'>[[6y0s]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_casei_g"_von_freudenreich_and_thoni_1904 "bacillus casei g" von freudenreich and thoni 1904]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6Y0S OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6Y0S FirstGlance]. <br> | <table><tr><td colspan='2'>[[6y0s]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_casei_g"_von_freudenreich_and_thoni_1904 "bacillus casei g" von freudenreich and thoni 1904]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6Y0S OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6Y0S FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6h07|6h07]], [[6hlf|6hlf]], [[6h1m|6h1m]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[6h07|6h07]], [[6hlf|6hlf]], [[6h1m|6h1m]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">radh ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1580 "Bacillus casei g" von Freudenreich and Thoni 1904])</td></tr> | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">radh ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1580 "Bacillus casei g" von Freudenreich and Thoni 1904])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6y0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6y0s OCA], [http://pdbe.org/6y0s PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6y0s RCSB], [http://www.ebi.ac.uk/pdbsum/6y0s PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6y0s ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6y0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6y0s OCA], [http://pdbe.org/6y0s PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6y0s RCSB], [http://www.ebi.ac.uk/pdbsum/6y0s PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6y0s ProSAT]</span></td></tr> | ||
Revision as of 15:53, 16 December 2020
X-ray structure of Lactobacillus brevis alcohol dehydrogenase mutant T102EX-ray structure of Lactobacillus brevis alcohol dehydrogenase mutant T102E
Structural highlights
Publication Abstract from PubMedTechnical crystallization is an attractive method to purify recombinant proteins. However, it is rarely applied due to the limited crystallizability of many proteins. To overcome this limitation, single amino acid exchanges are rationally introduced to enhance intermolecular interactions at the crystal contacts of the industrially relevant biocatalyst Lactobacillus brevis alcohol dehydrogenase (LbADH). The wildtype (WT) and the best crystallizing and enzymatically active LbADH mutants K32A, D54F, Q126H, and T102E are produced with Escherichia coli and subsequently crystallized from cell lysate in stirred mL-crystallizers. Notwithstanding the high host cell protein (HCP) concentrations in the lysate, all mutants crystallize significantly faster than the WT. Combinations of mutations result in double mutants with faster crystallization kinetics than the respective single mutants, demonstrating a synergetic effect. The almost entire depletion of the soluble LbADH fraction at crystallization equilibrium is observed, proving high yields. The HCP concentration is reduced to below 0.5% after crystal dissolution and recrystallization, and thus a 100-fold HCP reduction is achieved after two successive crystallization steps. The combination of fast kinetics, high yields, and high target protein purity highlights the potential of crystal contact engineering to transform technical crystallization into an efficient protein capture and purification step in biotechnological downstream processes. Crystal Contact Engineering Enables Efficient Capture and Purification of an Oxidoreductase by Technical Crystallization.,Grob P, Huber M, Walla B, Hermann J, Janowski R, Niessing D, Hekmat D, Weuster-Botz D Biotechnol J. 2020 Apr 17:e2000010. doi: 10.1002/biot.202000010. PMID:32302461[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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