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| | <StructureSection load='6sch' size='340' side='right'caption='[[6sch]], [[Resolution|resolution]] 2.20Å' scene=''> | | <StructureSection load='6sch' size='340' side='right'caption='[[6sch]], [[Resolution|resolution]] 2.20Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6sch]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/"clostridium_rubrum"_ng_and_vaughn_1963 "clostridium rubrum" ng and vaughn 1963]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6SCH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6SCH FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6sch]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_beijerinckii Clostridium beijerinckii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6SCH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6SCH FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2PE:NONAETHYLENE+GLYCOL'>2PE</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">adh ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1520 "Clostridium rubrum" Ng and Vaughn 1963])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2PE:NONAETHYLENE+GLYCOL'>2PE</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Isopropanol_dehydrogenase_(NADP(+)) Isopropanol dehydrogenase (NADP(+))], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.80 1.1.1.80] </span></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=6sch FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6sch OCA], [https://pdbe.org/6sch PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6sch RCSB], [https://www.ebi.ac.uk/pdbsum/6sch PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6sch ProSAT]</span></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=6sch FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6sch OCA], [https://pdbe.org/6sch PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6sch RCSB], [https://www.ebi.ac.uk/pdbsum/6sch PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6sch ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/ADH_CLOBE ADH_CLOBE]] Alcohol dehydrogenase with a preference for medium chain secondary alcohols, such as 2-butanol and isopropanol. Has very low activity with primary alcohols, such as ethanol. Under physiological conditions, the enzyme reduces aldehydes and 2-ketones to produce secondary alcohols. Is active with acetaldehyde and propionaldehyde.<ref>PMID:8349550</ref> <ref>PMID:20102159</ref>
| + | [https://www.uniprot.org/uniprot/ADH_CLOBE ADH_CLOBE] Alcohol dehydrogenase with a preference for medium chain secondary alcohols, such as 2-butanol and isopropanol. Has very low activity with primary alcohols, such as ethanol. Under physiological conditions, the enzyme reduces aldehydes and 2-ketones to produce secondary alcohols. Is active with acetaldehyde and propionaldehyde.<ref>PMID:8349550</ref> <ref>PMID:20102159</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Clostridium rubrum ng and vaughn 1963]] | + | [[Category: Clostridium beijerinckii]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Heap, J T]] | + | [[Category: Heap JT]] |
| - | [[Category: Murray, J W]] | + | [[Category: Murray JW]] |
| - | [[Category: Vidal, L Selles]] | + | [[Category: Selles Vidal L]] |
| - | [[Category: Cofactor]]
| + | |
| - | [[Category: Oxidoreductase]]
| + | |
| Structural highlights
Function
ADH_CLOBE Alcohol dehydrogenase with a preference for medium chain secondary alcohols, such as 2-butanol and isopropanol. Has very low activity with primary alcohols, such as ethanol. Under physiological conditions, the enzyme reduces aldehydes and 2-ketones to produce secondary alcohols. Is active with acetaldehyde and propionaldehyde.[1] [2]
Publication Abstract from PubMed
The non-natural needs of industrial applications often require new or improved enzymes. The structures and properties of enzymes are difficult to predict or design de novo. Instead, semi-rational approaches mimicking evolution entail diversification of parent enzymes followed by evaluation of isolated variants. Artificial selection pressures coupling desired enzyme properties to cell growth could overcome this key bottleneck, but are usually narrow in scope. Here we show diverse enzymes using the ubiquitous cofactors nicotinamide adenine dinucleotide (NAD) or nicotinamide adenine dinucleotide phosphate (NADP) can substitute for defective NAD regeneration, representing a very broadly-applicable artificial selection. Inactivation of Escherichia coli genes required for anaerobic NAD regeneration causes a conditional growth defect. Cells are rescued by foreign enzymes connected to the metabolic network only via NAD or NADP, but only when their substrates are supplied. Using this principle, alcohol dehydrogenase, imine reductase and nitroreductase variants with desired selectivity modifications, and a high-performing isopropanol metabolic pathway, are isolated from libraries of millions of variants in single-round experiments with typical limited information to guide design.
Versatile selective evolutionary pressure using synthetic defect in universal metabolism.,Selles Vidal L, Murray JW, Heap JT Nat Commun. 2021 Nov 25;12(1):6859. doi: 10.1038/s41467-021-27266-9. PMID:34824282[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Ismaiel AA, Zhu CX, Colby GD, Chen JS. Purification and characterization of a primary-secondary alcohol dehydrogenase from two strains of Clostridium beijerinckii. J Bacteriol. 1993 Aug;175(16):5097-105. PMID:8349550
- ↑ Goihberg E, Peretz M, Tel-Or S, Dym O, Shimon L, Frolow F, Burstein Y. Biochemical and Structural Properties of Chimeras Constructed by Exchange of Cofactor-Binding Domains in Alcohol Dehydrogenases from Thermophilic and Mesophilic Microorganisms. Biochemistry. 2010 Feb 9. PMID:20102159 doi:10.1021/bi901730x
- ↑ Selles Vidal L, Murray JW, Heap JT. Versatile selective evolutionary pressure using synthetic defect in universal metabolism. Nat Commun. 2021 Nov 25;12(1):6859. doi: 10.1038/s41467-021-27266-9. PMID:34824282 doi:http://dx.doi.org/10.1038/s41467-021-27266-9
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